25 points help please
A litter of 6 kittens are born to the same parents. Some kittens have gray fur and some kittens have black fur.
Which statement about the kittens' genetic information is true?
Question 17 options:
They carry mutations in the gene for fur color
They all inherited identical genetic information from their parents
They have different alleles for fur color
Some kittens have more genes for fur color than others
Answers
Answer:
They have different alleles for fur color
Explanation:
In a chromosome the alleles are either dominant or recessive, The parents fur color will decide causing different fur colors.
Related Questions
Two individuals who are heterozygous for Huntington’s are pregnant with a child. What is the probability that the resulting child will not inherit Huntington’s disease ?
Calculate the probability. The Punnett square is provided to show your work
Answers
The probability that the child will not inherit Huntington’s disease is therefore 1/4.
What is Probability?This is defined as a numerical description of how an event is likely to occur and the formula is :
Number of favourable outcomes/Total Number of outcomes.
When the heterozygous traits(Hh × Hh) are crossed, we have HH, Hh, Hh, hh.
The recessive trait is hh which makes the probability to be 1/4 in which the resulting child will not inherit the disease.
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Which of the following did you remember?
The nucleus directs cell activity.
Ribosomes produce proteins for the cell. These proteins are then moved through the cell by the
endoplasmic reticulum.
The Golgi apparatus packages and distributes proteins from the endoplasmic reticulum.
Vacuoles store water, waste products, food, etc.
Lysosomes break down waste material and debris.
Mitochondria break down sugar molecules to supply energy. Similarly, chloroplasts capture the
energy from sunlight and convert it into chemical energy.
O The cell membrane protects the cell and controls what enters and leaves it. The cell wall supports
the cell membrane, maintains the cell's shape, and protects the cell.
The cytoplasm supports and protects organelles in the cell?
Answers
The information quoted in the question describes the functions of components of a cell. All the cells in the body function technical functions but every cell contains almost the exact organelles.
All statements are true and define the function of most organelles present in the cell.
What are the functions of organelles presents in the cells?The nucleus directs cell activity: the nucleus is where the genetic information is found and by means of gene expression it controls the cellular functions-Ribosomes produce proteins for the cell: Ribosomes produce messenger RNA proteins (mRNA) by connecting amino acids together-These proteins are then transferred through the cell by the endoplasmic reticulum: it is a network of membranes within the cell via which proteins and other molecules move-The Golgi apparatus packages and distributes proteins from the endoplasmic reticulum: It transforms and exports protein to the rest of the body. Proteins, in their passage through the Golgi apparatus, carry out a modification process.Vacuoles stock water, waste products, food, etc: vacuoles store substances, in plants they occupy a large percentage of the cytoplasm and adjust their size during ormo regulation.-Lysosomes break down waste material and debris: They contains hydrolytic enzymes that allow intracellular digestion of macromolecules-Mitochondria break down sugar molecules to supply energy. Similarly, chloroplasts capture the energy from sunlight and convert it into chemical energy: Chloroplasts and mitochondria through the processes of cellular respiration and photosynthesis produce energy necessary for the vital functions of the cell.
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5. The petroleum industry uses 1% of the available fresh water in
Alberta for oilfield injection, while farmers use 47% for irrigation. Why are many citizens opposed to the use of water by the petroleum industry but are not concerned with the use of water for irrigation?
A. The petroleum industry has lots of money.
B. Food produced by irrigation is more vital than the oil produced by the petroleum industry.
C. Water used by the petroleum industry is injected deep
underground and does not return to the hydrological cycle.
D. Farming is more important to the province than the petroleum
industry is.
Answers
Water used by the petroleum industry is injected deep underground and does not return to the hydrological cycle. The correct option is C.
Water and petroleum industriesMost of the water used in oil extraction is not returned to the hydrological cycle.
In actual fact, some percentage of the water used in extracting crude oil tends to be a source of pollutants to the freshwater reservoir in the environment.
With irrigation farming, this is not the case. Thus, many citizens will oppose the use of water by the petroleum industry but not irrigation farming.
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.
If the DNA sequence is CCAATTGA, what is the compliment?
Answers
GGTTAACT is the complement of DNA sequence CCAATTGA.
What is a complement sequence of DNA?A sequence of bases in a nucleic acid called a complementary sequence can be used to match base pairs to create a double-stranded structure. For instance, G-T-A-C is the complementary sequence to C-A-T-G, where each letter represents a different DNA nucleotide.
Every DNA sequence has a counterpart sequence running in parallel since DNA has two strands. Adenine (A) is always coupled with Thymine (T) in the complementary sequence, while Cytosine (C) is always paired with Guanine (G).
Natural complementary DNA plays a crucial role in the production of new DNA copies and has emerged as a key experimental tool. The two strands of DNA are unraveled from one another during replication. Each strand is replicated twice, one by a DNA polymerase molecule that runs the length of each strand.
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What type of body form of Cnidarians are tubular shaped and attach themselves to a firm surface?
A. polyp
B. medusa
C. nematocyst
D. spicule
Answers
The correct answer is Option A: polyp
Polyps are tubular body shapes of cnidarians that are attached to a firm surface.
What are cnidarians?Cnidaria or Coelenterata is a phylum of aquatic animals most of which are marine. Any organism under this phylum is called a cnidarian.These have special cells called cnidocytes (stinging cells) which help to capture prey.Examples of this group are the corals, jellyfish, hydra, sea anemone.Cnidarians have two types of body forms the polyp and the medusa which change during the life cycle of the animal. Some have only one type of body form throughout their life.The polyp is tubular and sessile, usually attached to a firm surface.Medusa (Jellyfish) is bell shaped and motile having tentacles hanging out at the margins.Spicules are sharp needle like shapes embedded in the sponges which help in defense.Nematocysts are large organelles produced as a secretory vessel from Golgi within cells called nematocyte in cnidarians.Learn more about polyp and medusa here:
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If you added 1 ml of an aqueous solution of NaCl at 0.4mol/l to 9ml of water what would be the final concentration of NaCl in the solution?
Answers
The final concentration of NaCl will be 0.04 mol/L.
Dilution principleThe dilution principle states that the number of moles of solute in a diluted solution remains the same as before dilution.
Mathematically, m1v1=m2v2
In this case, m1 = 0.4 mol/L, v1 = 1 mL, v2 = 1+9 = 10 mL
m2 = m1v1/v2 = 0.4 x 1/10 = 0.04 mol/L
Thus, the final concentration of the NaCl solution will be 0.04 mol/L.
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What term generally describes small chunks of rocks and debris in space?
• meteorites
• meteoroids
• meteors
meteorides
Answers
Answer:
meteorite
Explanation:
When it is in space it is called a meteorite, when coming into the atmosphere it is a meteor, and when it hits earth it is a meteoroid.
Which of the following describes a way to recover items and use them for energy?
I. Use biofuel or biogas when available for vehicles.
II. Use recovered biomass when appropriate.
III. Reuse plastic or cotton bags for shopping.
II only
I and II
I and III
I, II, and III
Answers
I and III are the correct options that describes a way to recover items and use them for energy.
Which of the following describes a way to recover items and use them for energy?Use biofuel or biogas when available for vehicles and reuse plastic or cotton bags for shopping for use of energy instead of fossil fuels. Recycling of waste materials is a good way to reduce production cost as well as reduce pollution in the environment.
So we can conclude that I and III are the correct options that describes a way to recover items and use them for energy.
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One of the ways which describes a way to recover items and use them for energy is the using recovered biomass when appropriate.
What is biomass energy?Biomass energy can simply be defined as that energy which is generated or synthesized by living things or once living things
So therefore, one of the ways which describes a way to recover items and use them for energy is the using recovered biomass when appropriate.
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Discuss the cause and transmission of bilharzia
Answers
Bilharzia becomes infected if you come into connection with contaminated water for example, when swimming, swimming or washing and the tiny worms tunnel into your skin. Once in your body, the worms move through your blood to areas such as the liver and bowel. After a few weeks, the worms start to lay eggs.
What are the ways of transmission of bilharzia?The parasites enter the body when a person is swimming, washing, or swimming in polluted water. They can also become contaminated by drinking the water or eating food that a person has passed in untreated water.
How can the space of bilharzia be stopped?Prevention & Control
Avoid swimming or wading in freshwater when you are in nations in which schistosomiasis happens.Drink secure water.Water used for bathing should be brought to a rolling boil for 1 minute to kill any cercariae, and then chilled before bathing to avoid burning.To learn more about Bilharzia, refer
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What organelles do plants have in their roots that helps them to sense gravity?
a) stigma
b) statocyte
c) starch
d) stamen
Answers
statocytes, organelles do plants have in their roots that helps them to sense gravity, correct answer is B.
what are statocytes ?
In higher plants, statocytes are the cells which sense gravity. They contain amyloplasts-statoliths, amyloplastic organelles which are filled by starch or sediment at the bottom of the cells. Coleoptiles, shoots, and inflorescence stems all have an elongating area that really is home to statocytes.
how do they help in sensing gravity ?
When the plant is reoriented in the gravity field, the starch-filled plastids (also known as statoliths) in the statocytes, that are highly polarized cells, fall to the physical bottom.
Hence, statocytes help in sensing gravity.
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Which components are part of the bone matrix? Select all that apply.
•Osteoid
•Adipose tissue
•Calcium salts
•Osteoclasts
•Osteogenic cells
Answers
The components that are part of the bone matrix are as follows:
OsteoidCalcium saltsWhat is the bone matrix?The bone matrix is that part of the bone tissue that forms most of the mass of the bone.
The bone matrix is comprised of organic and inorganic substances. The organic component of the bone matrix includes the following:
collagenground substanceHowever, the inorganic component is mainly;
inorganic bone salts
hydroxyapatite
Therefore, the components that are part of the bone matrix are as follows:
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You conduct an experiment to determine the concentration of ions in an unknown solution. You place 300mL inside a dialysis bag and place the bag into a beaker of water with an ion concentration of 100 ppm (parts per million). When you check the experiment an hour later, the bag is swollen and has taken in water. What can you conclude?
Answers
The conclusion is that water has moved from the beaker into the bag by osmosis because concentration of solute in the beaker is lower than that in the bag.
What is osmosis?Osmosis is the movement of water molecules across a semipermeable membrane from a solution of low solute concentration to one of high solute concentration.
The concentration of solute in the beaker is lower than that in the bag, therefore, water will move from the beaker into the bag by osmosis.
In conclusion, the solution in the beaker is of lower solute concentration than in the bag.
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The author uses the Money Pit diagram to show
A
the rocks and minerals below Earth's surface.
B
the depth at which various items were found.
C
the considerable money spent to explore it.
D
the location of the pirate treasure.
Answers
The author uses the Money Pit diagram to show the location of the pirate treasure.
What is the Money pit diagram?The money pit diagram depicts the location of a treasure that is deep below the ground. It shows a dip pit in the city of Oakland that was explored by a team in search of a hidden treasure somewhere in the field. The money pit exists in Oakland. Once, explorers who were digging deep saw an inscription which suggested that a treasure was lying deep below.
However, no treasure was eventually found at the site after it was deeply dug. However, the hole dug in search of the treasure had been codenamed money pit until date. The money pit was found out in 1795 by a local boy named Daniel McGinnis
Hence, in this context, the author uses the Money Pit diagram to show the location of the pirate treasure.
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Answer: The answer is (B) the depth at which various items were found.
Explanation:
AP Biology - If 72 out of 200 individuals....(pic is attached) - worth 25 points!
Answers
Answer:
A.) 48%
Explanation:
AA = dominant genotype
Aa = heterozygous genotype
aa = recessive genotype
Hardy-Weinberg Equations:
p² + 2pq + q² = 1 p + q = 1
In this equation, In this equation,
-----> p² = frequency of "AA" -----> p = frequency of "A"
-----> 2pq = frequency of "Aa" -----> q = frequency of "a"
-----> q² = frequency of "aa"
(Step 1)
Determine the frequency of the recessive allele ("a").
72 / 200 = 0.36 recessive phenotype
The only way to have the recessive phenotype is to have the recessive genotype, aa. Therefore, q² = 0.36.
If q² = 0.36, then q = 0.6 (take the square root).
(Step 2)
Determine the frequency of the dominant allele ("A").
p + q = 1
p + 0.6 = 1
p = 0.4
(Step 3)
Determine the frequency of the heterozygous genotype ("Aa").
If -----> p = 0.4 and q = 0.6
Then -------> 2pq = 2(0.4)(0.6) = 0.48
0.48 x 100% = 48% Aa
Down syndrome, the most common genetic condition in the United States, is also called trisomy 21. What does this mean?
(PLEASE ANWSER ONLY IF YOUR SURE )
A)
A person with Down syndrome has two copies of chromosome 21 but they're fused together. During early embryo development, these chromosomes didn't segregate properly.
B)
A person with Down syndrome has three copies of chromosome 21 instead of two copies. Two sperm cells simultaneously fertilized the egg cell.
C)
A person with Down syndrome has only one copy of chromosome 21 instead of two copies. Either the sperm cell or the egg cell was lacking this chromosome.
D)
A person with Down syndrome has three copies of chromosome 21 instead of two copies. An extra chromosome 21 was present in either the sperm or the egg cell.
Answers
A person with Down syndrome has three copies of chromosome 21 instead of two copies. An extra chromosome 21 was present in either the sperm or the egg cell (Option D).
What is a trisomy?A trisomy is a genetic phenomenon where there homologous chromosomes (instead of two) are found in diploid cells.
A person with Down syndrome carries three copies of chromosome number 21 instead of two.
In conclusion, A person with Down syndrome has an extra chromosome 21 that was present in either the sperm or the egg cell (Option D).
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which cycle is represented in this image?
A. Carbon cycle
B. Water cycle
C. Nitrogen cycle
D. Oxygen cycle
Answers
Carbon cycle is represented in this image.
What is carbon cycle?The carbon cycle is nature's method of recycling carbon atoms, which repeatedly go from the atmosphere into Earth's living things and back into it. The majority of carbon is kept in rocks and sediments.The remainder is kept in the ocean, atmosphere, and living things.The process through which carbon moves between the atmosphere, land, oceans, and subsurface sediments is known as the carbon cycle.Respiration, combustion, decomposition, and photosynthesis. Carbon enters plants and other living things through the atmosphere.The biogeochemical cycle known as the carbon cycle involves the exchange of different carbon compounds between the biosphere, geosphere, pedosphere, hydrosphere, and atmosphere, among other layers of the earth.Learn more about carbon cycle here:
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Enzymes can be inhibited in different ways. Describe two methods of enzyme inhibition by describing similarities and differences.
Answers
Enzymes can be inhibited in different ways this can inclued three types of reversible enzyme inhibition: competitive, non-competitive and uncompetitive.
How can enzymes be inhibited?Irreversible and reversible enzymatic inclusion. A valent-chain inhibitor occurs with a valent-chain inhibitor, whereas a valent enzyme does not occur with a valent-chain inhibitor.
In enzymatic inhibition, the inhibiting substance forms chemical bonds with the enzymes in order to interfere with their catalytic activity. This inclued types of enzyme inhibition:
Irreversible inhibitors bind to enzymes leading to their definitive inactivation. These inhibitors are very toxic to the body as they are not specific, being able to inactivate any enzyme.Reversible inhibitors can be divided into two groups: competitive and non-competitive. This division is based on the presence or absence of competition between the inhibitor and the substrate for the active center of the enzyme.See more about enzymatic inhibition at brainly.com/question/13174512
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occurs when the individual inherits only one (female) X chromosome
Answers
According to the research, Turner syndrome is a condition that occurs when the individual inherits only one (female) X chromosome.
What is Turner syndrome?It is a genetic condition that is due to the lack of an X chromosome or part of it and can include characteristics such as delayed or incomplete development of puberty.
It can be diagnosed at birth or during childhood, puberty, or adulthood.
Therefore, we can conclude that according to the research, Turner syndrome is a condition that occurs when the individual inherits only one (female) X chromosome.
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Explain how cellular transport is used to maintain homeostasis is one of the following ways: [A]
- reabsorption of water in the nephron
- absorption of water by roots
- reabsorption of nutrients in the nephron
- release and reuptake of neurotransmitters by a neuron
Answers
Homeostasis control mechanisms normally occur through negative feedback processes, in this case, reabsorption of water in the nephron.
What is cellular homeostasis?Homeostasis is the process by which the organism maintains constant the constant internal conditions for life. The term is applied to the set of processes that prevent variations in the physiology of an organism.
The main function of homeostasis is to regulate the countless processes that take place in the body in order to keep it in a normal condition. So the majority of water reabsorption that occurs in the nephron is facilitated by the AQPs
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what makes the waves pull away in a srtright line
Answers
Waves pull away in a srtright line because the the disturbance action of transferring energy is done without an outside influence and in the same medium as well
What is a wave?A wave is defined as a disturbance which travels through a distance, transferring energy from one place to another
Some few types of waves are
Electromagnetic wavesMatter wavesMechanical wavesSo therefore, waves pull away in a srtright line because the the disturbance action of transferring energy is done without an outside influence and in the same medium
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Which of these is most likely to occur soon after an individual eats a meal?
Answers
[tex] \\ \\ [/tex]
=> Your body breaks down carbohydrates quickly, and glucose travels directly through the walls of your intestines and into your blood.
We can educate people from the ecological footprint that the 3 main factors of the footprint are transportation, housing and food decisions.
Answers
To educate the people, you can start by following some simple steps to reduce your own ecological footprint. We can improve the way we live, what we buy, and how we participate in the community to reduce greenhouse emissions.
What is an ecological footprint?The Ecological Footprint measures how fast we consume resources and generate waste compared to how fast nature can absorb our waste and generate resources.It is the impact a person or community has on the environment, expressed as the amount of land required to sustain their use of natural resources. To reduce ecological footprint we must reduce our personal emissions and press the government to make laws to ensure that larger emitters do the same.Certain sustainable practices (like recycling, paper vs. plastic, paper towels vs. cloth) do not have an extremely significant effect in reducing the ecological footprint.The 3 main factors of the footprint are transportation, housing and food decisions.Follow some of these steps to reduce your ecological footprint
Incorporate walking to some of your regular short-trip destinations.Reduce use of Single-Use, Disposable Plastics. Switch off lights and unplug devices when you're not using them. Eat more food that is made locally and less meat. A great place to start is by shopping at your local farmer’s market. The meat industry is a major source of greenhouse gas emissions.Use alternative transportation (bus, train, carpool, or bike) to get to work one day per week.Switch to Renewable Energy.When considering factors like food, water-use, waste and transportation, there is an urgent need for these sustainable daily actions.
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Read this review of a science fiction novel. This new science fiction novel is one of the best that I have ever read. It takes place on a shuttle that shines brightly in the deep, dark reaches of outer space. There are colorful characters, exciting action sequences, and lots of suspense. For these reasons and many others, I would say that this book is one of the best! Which technique does the author use to convince the audience that this science fiction novel is high quality? word choice to create ethos imagery to create pathos repetition to create logos imagery to create ethos
Answers
A persuasive technique which the author used to convince the audience that this science fiction novel is high quality is: D. imagery to create ethos.
What is a persuasive essay?A persuasive essay can be defined as a type of essay in which the aim of an author (writer) is to convince the readers (audience) to accept his own point of view, perspective, ideas or opinions.
In English literature, the three modes of persuasion in a rhetorical situation include the following:
Logos PathosEthosWhat are ethos?Ethos can be defined as the emotions or character of an author (writer) that are expressed so as to persuade an audience to accept a specific point of view, perspective, ideas or opinions.
In this context, we can infer and logically deduce that a persuasive technique which the author used to convince the audience that this science fiction novel is high quality is imagery to create ethos.
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Answer:
i think its "D"
Explanation:
yw!
A community is the interaction of different populations of living things true or false
Answers
Answer:
True
Explanation:
Communities can include different species also.
What is climate change?
magnifying ultraviolet radiation in the atmosphere
a rise in global temperatures because of our natural systems being thrown out of balance
a source of energy that generates dangerous waste
the average temperature of our planet over the past million years
Answers
Which of the following best describes how a biotic factor can limit the population growth in a species?
A) A sudden drop in temperature causes nearly half of the species' population to die.
B) Disease leads to a decline in the reproductive rate of the species' main predator.
C) Lack of rainfall over a long period of time forces the species to migrate to a new location.
Answers
Answer: B) Disease leads to a decline in the reproductive rate of the species' main predator.
Explanation: Disease is a biotic factor and A and C are not :)
Answer:
B
Explanation:
B) Disease leads to a decline in the reproductive rate of the species' main predator.
During an allergic response to a bee sting or pollen, which of the following hormone is often released?
a) PTH
b) prostaglandin
c) GH
d) thyroxine
Answers
Prostaglandin is released in response to to a bee sting or pollen.
What is an allergic response?An allergic response is a series of reactions induced by the immune system of the body due to the presence of a foreign substance known as an allergen.
A bee sting or pollen can be recognized as allergen and results in the release of prostaglandins by mast cells.
In conclusion, prostaglandins are produced in response to allergens.
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Identify and describe the phenomenon in an investigation
Answers
A phenomenon in an investigation is any situation and/or process observed in the real world that needs to be elucidated by using the scientific method.
What is a phenomenon in sciences?In sciences, the word 'phenomenon' makes reference to any process observed in the real world whose causes and/or consequences remain to be elucidated.
Phenomena are elucidated by means of a series of sequential steps in order, which is known as the scientific method, it is based on experimental procedures to test a given explanation (hypothesis) of these phenomena.
In conclusion, a phenomenon in an investigation is any situation and/or process observed in the real world that needs to be elucidated by using the scientific method.
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. How are taigas being impacted by global climate change?
The area where trees grow is shifting.
Invasive species are destroying plants.
Less water is available.
Glaciers are melting.
Answers
Taigas are in danger as a result of climate change in various ways. The frozen layer below earths surface is partially melting as a result of the warming environment.
More of the taiga is being occupied by muskegs as a result of this water's lack of a drainage system.Deforestation brought on by logging and clear-cutting poses the biggest threat to the taiga. Timber is obtained using these techniques for the production of wood and paper goods. In order to build cities, forests are also destroyed, which might fragment habitats.In boreal coniferous forests, more forest fires are occurring more frequently as a result of global warming. This implies that deciduous trees, which often only show up as pioneer species, may eventually come to dominate the landscape.learn more about taigas here:
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1) Research biotechnology that currently exists describing the engineering design that made it possible.
2) Evaluate the design listed in problem 1 paying particular attention to benefits and risks.
Answers
The field of biotechnology combines biological and technological ideas. The main advantage that biotechnology can offer is advancement in engineering.
Benefits of biotechnology include the ability to simultaneously increase health and decrease hunger. It makes the food chain more flexible. It provides chances for medicinal advancement. We can conserve resources because of it. It assists us in reducing or eliminating waste. It may lower the prevalence of infectious diseases. Among biotechnology's drawbacks, this area of study has a lot of unanswered questions. It results in an all-or-nothing strategy. Croplands could be destroyed. It makes the value of human life a commodity. It is capable of being destroyed.
All the advantages that biotechnology can offer could be utilized to create a weapon of mass devastation. Unchecked biotechnology might potentially give rise to a social stratum that exists solely for scientific purposes.
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