Mendel's experiments discovered that one parent's trait disappeared in the F1 generation, only to reappear in one quarter of the F2 generation. Which of the following best explains this pattern of inheritance?

A) A sperm or egg carries only one allele for each inherited trait because allele pairs segregate during gamete production.

B) There are alternative forms of genes that account for variation in inherited characteristics.

C) If the two alleles of an inherited pair differ, then one determines the organism's appearance and is the dominant allele.

D) For each characteristic, an organism inherits two alleles, one from each parent.

Answers

Answer 1

The statement that best explains the pattern of inheritance described above is that if the two alleles of an inherited pair differ, then one determines the organism's appearance and is the dominant allele (option C).

What is an allele?

Allele is the alternative form of the same gene occupying a given position, or locus, on a chromosome.

According to Gregor Mendel in his law of inheritance, he deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.

Dominant alleles are alleles that are physically expressed while the recessive alleles are those that are masked by the dominant alleles.

According to this question, Mendel discovered that one parent's trait disappeared in the F1 generation of his experiment, only to reappear in one quarter (¼) of the F2 generation.

This is as a result of the concept of dominance or recessiveness in the allele encoding the particular trait. The dominant allele expressed itself over the recessive one in the F1 generation.

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Related Questions


PLEASE ANSWER THIS QUICKLY!!

Answers

Answer:

1. Gas giant

2. Galaxy

3. Universe

Explanation:

I know my space. Hope this helps!

Answer:

Person above is correct. =D

Explanation:

1. Gas giant

2. Galaxy

3. Universe

Where is ciliated pseudostratified columnar epithelium found in the body?.

Answers

Answer:

The pseudostratified epithelium is also sometimes referred to as respiratory epithelium since ciliated pseudostratified columnar epithelia are mainly found in the larger respiratory airways of the nasal cavity, trachea, and bronchi.

Both the brain and the spinal cord are protected by
A. The Skull
B. a thick, paste like substance
C. The vertebral column
D. a watery fluid​

Answers

I believe that would be B.
Correct me if wrong.

Which of the following molecules is the subunit of DNA that links together to form strands of DNA?
A.
a polymerase
B.
a nucleotide
C.
a codon
D.
a phosphate base

Answers

Answer:

the answer is a nucleotide

Which term correctly completes the flow chart?
tissues -> .................... -> organ system

A. cell
B. organ
C. molecule
D. organism

Answers

Answer:

A, cells

Explanation:

hope this helps

Nitrogen makes up most of the Earth's atmosphere in the form of N2, a gas that does not easily undergo chemical reactions. What would ultimately happen if nitrogen stayed in the form of N2 and did not leave the atmosphere?
A.
Animals would run out of food.
B.
All life on Earth could end.
C.
Plants would eventually stop growing.
D.
all of these

Answers

Answer:

it must be denitrified.

Explanation:

Decomposition makes the nitrogen available to go through nitrification again. For nitrogen to return to the atmosphere in its gaseous N2 form,

What is the great pacific trash gyre?

Answers

Answer:

The Great Pacific garbage patch (also Pacific trash vortex) is a garbage patch, a gyre of marine debris particles, in the central North Pacific Ocean. It is located roughly from 135°W to 155°W and 35°N to 42°N.

PLSSSSS I NEED THIS QUESTION ANSWERED 50 POINTTSSSSSS
The populations of zebras and wildebeests decrease when the grasses decrease. They also slowly increase when the rainy season brings new grasses to eat. This represents a

climax community
biological surplus
peak phenomenon
sigmoid phenomenon

Answers

Answer:

The correct option is "D", the sigmoid phenomenon because Populations that exhibit the sigmoid pattern increase rapidly while food and habitat are abundant, and then slow down as regulatory factors such as lower birth rate and reduced food availability come into play. As the rate of population growth slows down to zero, the population reaches a fairly stable level.

sigmoid phenomenon! its super cool. like, i took the test yo!

Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Fill in the terms
that complete the statements.
In this lab, you observed how changes in the environment can affect the health of a watershed. You saw how two
y entered and flowed through the watershed. You also predicted how y activity affected
food chains, diagrams that show how energy is passed from one biotic factor to another through the foods they
eat.
types of

Answers

Answer:

1000 thats all theres to it

Explanation:

i checked

A space where water from various sources drains is called a watershed. The water from streams and rivers gets drained to a common outlet. The answer should be blank 1 factors, blank 2 human and blank 3 is food web.

What is a watershed?

A watershed is a section of drainage basin or "sheds" water into a particular body of water.

A watershed exists for every body of water. Rainfall and snowmelt are channeled into streams and rivers by watersheds.

These smaller bodies of water drain into larger bodies of water, such as lakes, bays, and oceans.

Abiotic and biotic factors enter and flow through the watershed. These can include plants, small microorganisms, soil, small rocks, and so on.

Human impacts have an impact on the food chain because activities such as deforestation, industrial emissions, and fuel combustion cause environmental changes that harm animals and plants in the ecosystem.

The food web depicts the energy flow in an ecosystem from producers to consumers and represents how energy is passed from plants to consumers as well as their interdependence.

Thus, it can be concluded that the blanks are factors, human and food web respectively.

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What material is the objective lens made of in UV fluorescence microscopy

Answers

Answer:

quartz

Explanation:

11
12
13
14
15
16
17
18
19
20
Air pollution affects everyone equally.
Please select the best answer from the choices provided
OT
OF

Answers

Answer:

16

Explanation:

Air pollution affects everyone equally is true statement.

What is Air pollution?

When pollutants are released into the atmosphere, they endanger both human health and the health of the entire planet. The World Health Organization (WHO) estimates that air pollution causes close to seven million deaths worldwide each year.

Currently, nine out of ten people breathe air that contains more contaminants than the WHO's recommended levels, with those in low- and middle-income nations suffering the most.

The 1970-established Clean Air Act gives the U.S. Environmental Protection Agency (EPA) the power to protect public health by controlling the emissions of certain dangerous air pollutants.

Therefore, Air pollution affects everyone equally is true statement.

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The graph shows the change in seabird mortality rates in New Zealand waters due to illegal, unreported, and unregulated fishing (IUU) and the implementation of bycatch remediation measures in 2004. What conclusion can be made about the impact of the remediation measures that were used?

Illegal and unregulated fishing practices continue to cause increases in bird bycatch numbers, in spite of the new measures.
Legal fishing practices have caused the new remediation measures to become more effective.
The measures virtually eliminated all of the bird bycatch.
The measures used showed very little impact on the overall seabirds caught in fishing lines.

Answers

According to the graph, the measurements practically eliminated all incidental captures, as shown in the third answer option.

What does the graph show?Illegal capture practices show a high performance between 1997 and 2003.Illegal capture practices show a low performance from 2004 and this performance tends to fall in the next years until it presents very low values.Legal capture practices maintain a balanced performance.

The decrease in the performance of illegal practices from 2004 onwards, shows how the remediation measures were efficient in reducing the activity of these practices and providing a better environmental well-being.

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What is the difference between DNA replication and transcription process

Answers

Closing. Both DNA copy and Transcription in the age of a new copy of the DNA in a cell. DNA transcription is involved in replicating the DNA into RNA, while DNA replication creates another copy of DNA. Both courses are included in the production of new nucleic acids- DNA or RNA.

So basically how do i ask my best friend out?

Answers

Answer:

Explain

well just do it i belive in you dont try to act all diffrent or cool that makes people not like u just be yourself

The relative abundance of species in an area is called

species evenness
species richness
clumped distribution
random distribution

Answers

Answer:

species richness

Explanation:

This is the number of different species in a given area. Evenness, clumped, and random all have to do with how the species are distributed in the area, not the abundance.

Answer: Its B species richness

Explanation: I got it right on the test <3 WOOOOO God bless you all

Spoil spider man mo way home for me

Answers

here you go

Aunt may dies

Renewable resources are resources that can be replaced Renewable resources are resources that can be replaced
faster than they are used. Which of the following energy resources is
renewable?
OA. petroleum
OB. natural gas
OC. uranium
OD. solar energy

Answers

Solar energy (energy from the sun) is a renewable resource. It will never run out

Brown hair is dominant and blonde hair is recessive.

What percent of the offspring will have brown hair if the parents have the following alleles?

Bb

Bb


A. 75

B. 50

C. 0

D. 100

E. 25

Answers

Make the punnett square. Ur options for offspring are BB, Bb, Bb, and bb. Since brown hair is dominant anything with B has brown. So 75%

_______ tells your cells what to do.

A. Genes

B. parent cells

C. white blood cells

D. Mitochondria

Answers

Genes :- they contain stored information which then orders cells through the process of translation

Define nondisjunction. Is this a beneficial process? Explain.

Answers

Answer:

Nondisjunction occurs when chromosomes fail to segregate during meiosis; when this happens, gametes with an abnormal number of chromosomes are produced. The clinical significance is high: nondisjunction is the leading cause of pregnancy loss and birth defects

Explanation:

All species have a maximum tolerance limit before they are no longer suited to live in their environment. In three to five sentences, discuss the potential outcomes for a species when that maximum limit is reached. There are at least four possibilities, and one point will be assigned per potential outcome mentioned

Answers

The potential outcomes of maximum tolerance limit are reduction in reproductive rate, population and life span of an organism.

What is the potential outcomes of maximum tolerance limit?

The potential outcomes is that when the maximum tolerance limit is reached, the population can decrease. As many individuals of a species can die due to maximum tolerance limit, it can also cause a reduction in reproductive rate as well as can reduce life span off individuals.

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Answer: The organism will be incapable of adapting, and the species will become extinct. The second possibility is that the organism will be unable to adapt, and the species will evolve into a new one. The third possibility is that the organism will adapt and evolve into a new species. The fourth possibility is that the organism will adapt and evolve to fit its new environment.

You can use Speedwrite or Quillbot to rephrase it so that you won't get in trouble for copying! :))

what happens when spyrogyra is placed in saline water?​

Answers

It gets plasmolysed, shrinking of the cytoplasm away from the wall of a living cell due to outward osmotic flow of water.

The main regions of the brain are the
A. Spinal Cord, Brain Stem and cerebrum
B. Cerebellum, Spinal Cord and Brain Stem
C. Cerebrum, Cerebellum, and Spinal Cord
D. Cerebrum, Cerebellum, and Brain Stem​

Answers

The brain is composed of the cerebrum, cerebellum, and brainstem. (D)

the peripheral nervous system is involved in
A. voluntary but not involuntary, actions
B. both voluntary and involuntary actions
C. involuntary but not voluntary actions​

Answers

Answer:

B. Both voluntary and involuntary actions

Answer:

b both voluntary and involuntary actions

Explanation:

peripheral nervous system is the whole system which is composed of voluntary actions ( by purpose actions eg. running) and involuntary actions ( natural actions eg. heartbeat)

Why is it important to conserve soil?

A.
It takes hundreds of years to form new soil.

B.
It is the outermost layer of the Earth.

C.
It is a renewable natural resource.

D.
It contains living organisms.

Answers

Answer:

it is the outermost layer of the earth

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B. It is the outermost layer of the Earth.

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form and function are related. describe how the form of the tracheal wall is related to its four functions

Answers

Given what we know we can confirm that the tracheal wall is related to its function in that it allows it to conduct air in a sealed manner and protect the individual.

What is the function of the trachea?

The primary function of the trachea is to conduct air into the lungs. For this, the trachea is long and narrow, to allow air to flow in a directed manner towards the lungs. The trachea is also "armored" to protect this air flow and is lined with mucus to sweep away any unwanted particles from the air.

Therefore, we can confirm that the trachea is armored and lined with mucus along its long, tube-like shape, which allows this structure to conduct air in a safe, clean, and direct manner directly towards the lungs.

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name the diseases that is caused by in lack of vitamin C,D and iodine​

Answers

Answer:

Scurvy

Explanation:

Severe deficiency, called scurvy, causes bruising, gum and dental problems, dry hair and skin, and anemia. The diagnosis is based on symptoms and sometimes blood tests.

Which feature of a human community is similar to a habitat in a biological community?


A. A person's job

B. Interdependent communities

C. Individual interests

D. The street on which a person lives

Apxx

Answers

Jobs is the human community niche that most closely resembles a biological community.

What is Biological Community?

Each ecological species has a certain role to play within the biological community. In order for species and organisms to live and grow, each species must contribute in some way.

Jobs play a significant role in human societies and wellbeing. Every job, from CEOs to fast food employees to janitors, is crucial.

Everybody contributes to the survival of businesses, and occupations enable employees to make money. The earnings are reinvested in the community to support its survival and growth.

Therefore, Jobs is the human community niche that most closely resembles a biological community.

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Answer the following in several complete sentences:

Explain how a psychologist would determine which eating disorder diagnosis should be applied to a particular individual based on his or her behaviors. Distinguish between binge-eating disorder, bulimia nervosa, and anorexia nervosa. (6 points)

Answers

Psychologist can determine eating disorder diagnosis via  behaviors through mood swings, way they eat, character displayed etc. The eating disorders that can be diagnose using the behavior of the patients are:

Other behaviors includes:

People forms schedules or rituals that gives them room for binging and purgingPeople are desperate to  exercise even when it not convenient for them, etc.

Anorexia Nervosa is characterized by:

The patient always insist they are overweight even when they are thin.Do not like taking food at all. There is restrictive food intake via dieting or fasting.Exercise too much.Always Bingeing.They self-induced themselves to vomiting so as to get rid of food.

The binge-eating disorder is  characterized by:The patient eat plenty food at once.Binge regularly.Patient do not feel like stopping when eating.Stress or emotional eating.The person eats  large amounts without ever feeling hungryWhen the person feels guilty or disgust about themselves.

The  bulimia nervosa disorder is characterized by:The person is often engage in binge eating.There is often compensatory purging.There is constant Purging and also involves vomiting, etc.

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Which is a no renewable source of energy?

Answers

Answer:

C) natural gas

Explanation:

Wind, water, and sunlight are abundant and easily renewable for energy. Natural gas is the only option that becomes more scarce as it is extracted from the earth.

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