In working with Drosphilia it is common to use a balancer stock to maintain mutations of interest. The balancer chromosomes are generally carrying multiple inversions on them. What effect would the inversions have on meiosis

Answers

Answer 1

Answer:

Fusion or pairing does not occur.

Explanation:

Inversions mutation leads to lowered fertility due to production of unbalanced gametes in the meiosis cell division. Chromosome inversions have no effect on mitosis, but they has affect meiosis because inversions changes the gametes which is only present in meiosis. If an inversion present is in the heterozygous condition, pairing of chromosomes cannot occur in a simple linear fashion due to change of sizes. But if the inverted chromosome segment has the proper size so it can paired with each other.


Related Questions

What is the answer with explaining

Answers

Answer:

EeWw

Explanation:

This question involves two genes; one coding for earlobes and the other for hairline. According to the question, one parent is homzygous recessive for earlobe but homzygous dominant for hairline i.e. (eeWW) while the other parent is homzygous dominant for unattached earlobes but homzygous recessive for hairline i.e. (EEww).

The cross between the two parents is as follows: eeWW × EEww. The following gamete combination will be produced by each parent:

eeWW - eW, eW, eW, eW

EEww - Ew, Ew, Ew, Ew

Using these gametes in a punnet square, the following proportions of offsprings will likely be produced:

All EeWw offsprings

Which answer option below describes the best way to increase the accuracy of a
confidence interval calculation?

Answers

The answer is c but this has to be twenty characters long

The accuracy of a confidence interval calculation can be increased from  95% to 99%.

Thus, option C is correct.

What is confidence interval?

A confidence interval contain a population parameter in a specified proportion of the time, which can be computed using the given confidence level from a limitless level of individual sample.

The proportion of the range consists of the true value of the factor that will be identical to the confidence level.

In most of the confidence interval examples, the confidence level chosen is 95%. and it can be raise up to 99%.

It cannot estimate the plausible values of the unknown parameter of the population.

Two types of confidence interval observed such as accuracy which is defined based on whether the confidence interval contains the true population parameter or not.

Secondly, the precision defined in terms of the width of a confidence interval.

Hence, option C is correct.

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8.Explain how is small intestine designed to absorb digested food.
9. Write two differences between the nutrition in amoeba and human beings.
10. Fungus can be harmful and useful. Give an example showing both of these traits of fungus.

Answers

Answer:

10. Fungus are useful as they act as decomposers and decompose the dead things. Fungus are harmful as they can decompose fruits, grains and plants etc.

Analyze the property of water you investigated and provide some real-world applications of the importance of this property of water. I did Surface Tension. Please Help!

Answers

Answer:

Water (H

2O) is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue. It is by far the most studied chemical compound[18] and is described as the "universal solvent"[19] and the "solvent of life."[20] It is the most abundant substance on the surface of Earth[21] and the only common substance to exist as a solid, liquid, and gas on Earth's surface.[22] It is also the third most abundant molecule in the universe (behind molecular hydrogen and carbon monoxide).[21]

one way viruses may be spread from person to person ​

Answers

Answer:

virus spreads mainly between people who are in close contact with each other, typically within 1 metre. A person can be infected when aerosols or droplets containing the virus are inhaled or come directly into contact with the eyes, nose, or mouth.

Explanation:

This is the correct answer I hope this helps you out a little.

Current evidence suggests that the virus spreads mainly between people who are in close contact with each other, typically within 1 metre (short-range). A person can be infected when aerosols or droplets containing the virus are inhaled or come directly into contact with the eyes, nose, or mouth.

what is the source of food for germinating seed ?​

Answers

Endosperm is the reservoir of nutrients in the developing embryo or germinating seed.

Regards
BLACKSHARK

What is the relationship between coronary artery disease and a heart attack?
A. Coronary artery disease is a symptom of heart attacks.
B. Heart attacks reduce blood flow to the heart and cause coronary artery disease.
C. Coronary artery disease can reduce blood flow to the heart and cause heart attacks.
D. Heart attacks occur when coronary artery disease is treated.

Answers

C) Coronary artery disease can reduce blood flow to the heart and cause heart attacks

CAD (or atherosclerosis) affects the vessels that supply blood to the heart muscle. It is caused by deposits of calcium, fat, cholesterol and fibrous tissues, which makes the lumen of arteries narrower. And due to inadequate supply of blood, the heart muscles get damaged. This can lead to a heart attack!

• Describe genetic______ and gene_________ as mechanisms of evolution.

Answers

Answer:

genetic is branch of science deal with study of heredity and genes

genes is segment of DNA which transfer parental character from one generation to another

Bert has blonde hair (b). Molly has brown hair (B), but her genotype is Bb, meaning she carries a recessive blonde allele. What is the likelihood of Bert and Molly's second child having brown hair?

Answers

Answer:

50%

Explanation:

Iif you do a punnet square you get Bb, Bb, bb, and bb

since blond is represneted by the recessive bb it's a 50% the child will have blond hair

explain how the mammalian skin perform it's role as a thermoregulatory



Answers

Answer:

The skin contains many blood capillaries and sweat glands ,the sweat glands secrete sweat when it is hot.when the sweat evaporates from the skin it cools the body.thermoregulation by the skin occurs through dilation and constriction of the blood vessels.when the bodies temperature raises,the blood vessels carry heat in the blood to the skin.the blood capillaries dilate become wider so that more heat can be lost to the environment.this is called vasodilation.when the outside temperature is low,the blood capillaries constrict become narrower so that less blood flows to the surface of the skin.therefore less heat is lost to the environment this is called vasoconstriction.

I hope this helps

Explain the self-correcting nature of science.​

Answers

The notion of a self-correcting science is based on the naive model of science as an objective process that incorporates new information and updates beliefs about the world depending on the available evidence. When new information suggests that old beliefs are false, the old beliefs are replaced by new beliefs.

The notion of a self-correcting science is based on the naive model of science as an objective process that incorporates new information and updates beliefs about the world depending on the available evidence. When new information suggests that old beliefs are false, the old beliefs are replaced by new beliefs.

Humans are diploid; every individual carries only two alleles.

a. True
b. False

Answers

A. True :)


I hope this helps

These bacteria rapidly divide until they run out of space. Their growth then slows down, and their population size stabilizes. What kind of curve would accurately show these changes in the population?

Answers

The correct answer is B. S-curve

Explanation

There are two models of population growth. One of them is the J-curve in which the population grows constantly without stabilizing, forming a J-shaped graph. Second, the S-curve is a model in which the population grows to a point, and from there it stabilizes, forming an S-shaped graph. According to the above, bacteria that divide rapidly until they run out of space and their growth slows down stabilizing the size of their population has an S curve model because the population does not grow unlimitedly but stabilized under specific circumstances. So, the correct answer is B. S-curve

how does replication ensure each cell has a complete set of DNA

Answers

Answer:

During replication a new strand of DNA is synthesized when the other strand is a template to guide the process. Every time the order of the bases in preserved so that DNA can be accurately replicated over and over with identical genetic information.

Below is an image of a nucleus before it divides via meiosis. The chromosomes shown in red are from the female parent, and the chromosomes
in blue are from the male parent. Predict the gametes that can be created from this organism and explain the reason these different gametes are
possible.

Answers

Answer:

I predict that the gametes will be unique from their parents.

Explanation:

I predict that the chromosomes will pair up, with each pair having a red chromosome and a blue chromosome, then they'll cross over and exchange similar genetic information with each other. I think this because variety is important for any species for survival.

Ġ Surface area te volume ratio plays a vital role in À. growth rate of organisms B. exchange of materials between organisms and their environment C. the life-span of organisms D. efficiency of various systems in organisms

Answers

Answer:

Exchange of materials between organisms and their environment

Explanation:

What is Alzheimer's disease??​

Answers

Answer:

Alzheimer's disease is a progressive neurologic disorder that causes the brain to shrink (atrophy) and brain cells to die.

Explanation:

Hope it is helpful.

Thankyou

Answer:

Alzhimers disease is a progressive neurologic disorder that causes the brain to shrink and brain cells to die . Alzhimers disease is the most common causes of dementia - a continious decline in thinking behavorial and social skills that affects persons ability to function indepedently .

As regards the use of animal models,

Select one:

a.
Animals can model anything in the realm of human psychology


b.
The rat brain is completely different from a human brain in its neuroanatomy


c.
The 5-choice serial reaction time task is a way to operationalize spatial memory and spatial learning


d.
Rats can drive little cars


e.
All of the other answers are correct

Answers

Answer:

b number is the answer is it ok

A student wants to determine how his classmates feel about school. He does a survey away from school so all participants will be willing to answer freely. In several cases, younger siblings of his classmates are present, so he lets them take the survey too. He surveys a total of 50 students. Has he done a well-designed, controlled experiment

Answers

Answer:

ojjjososkjsjeiemejekliijahaupamahdh

Biomagnification results in higher amounts of toxic substances for organisms on the food chain
True
False

Answers

Answer:

Biomagnification results is higher in amount of toxin substances so the answer is true

Explanation:

Sperm is produced in the?

Answers

Answer:

testis

Explanation:

produced from the testicals

Answer:

testis

Explanation:

produced from the testicals


The layer of soil that contains the most organic material is called the
a. A
C C
b. B
d D

Answers

Answer:

That layer is called the a horizon, so the answer is A.

Explanation:

Why can't we meet all of our protein needs in one meal?

Answers

Because most people go for what tastes good rather than what is protein rich, and what tastes good is usually high in fat and carbohydrates, as opposed to proteins.


Which of the following parts of a prokaryote is the part of the cell membrane that is folded in and thought to be used
for helping DNA replicate?
A. Mesosome
B. Genophore
C. Peptidoglycan
D. Cell wall

Answers

Answer:

a

Explanation:

: an organelle of bacteria that appears as an invagination of the plasma membrane and functions either in DNA replication and cell division or excretion of exoenzymes.

The following part of the cell membrane that is folded in and thought to be used for helping DNA replicate is the mesosome. The correct option is A.

What is mesosome?

Mesosome is a round organelle that is present in prokaryotic organisms like bacteria. These organisms present as introversion in the plasma membrane. This organ helps in many functions of the cell like DNA replication and cell division.

DNA replication is a process of replicating DNA in other cells. It happens in the process of cell division. In bacteria cells, mesosomes help in the distribution of DNA into the daughter cells during the division.

Thus, the correct option is A. Mesosome regarding the organelle present in the bacteria helps in DNA replication.

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"Ancient Greek Myths for Kids: The Story of King Midas and the Golden Touch - Ancient Greek Myth for Kids" https://greece.mrdonn.org/greekgods/kingmidas.html​

Answers

Answer:

..........................

Hello there!

Is there anything you need help with which is based on the story?

What kind of claim type does this statement make? Abbey Road is a much better album than Let It Bleed.

Select one:
a.
value
b.
policy
c.
fact

Answers

A . Value because that’s your valued opinion

The kind of claim type does this statement is the value claim.

A claim of value refered to something as either good or bad, or that one thing is better than another thing.

Example of value: Abbey road album is better than let it bleed.

Conclusively we can therefore say that option A is the answer that best fit the statement above.

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Green house effect is caused by a) Green plants b) Infra red rays c) UV rays d)X-ray​

Answers

I think C is the answer
It is caused by c) Infrared rays ! ☺️ hope I helped!

Which of the following organelles can be found in plants AND animals?
A. Mitochondria
B. Chloroplasts
C. Vacuole
D. Cell wall

Answers

Answer:

Mitochondria can be found in plants and animals

how does Fibrocartilage receive it's nutrients?

Answers

Answer:

There are no blood vessels in cartilage. As a result, the nourishment of cells inside the cartilage matrix is reliant on nutrients diffused through the matrix from blood capillaries in the perchondrium and/or surrounding tissues.

OAmalOHopeO

Compared to ocean crust near deep-sea trenches, crust near ocean ridges is ____.

Select one:

a.
younger


b.
the same age


c.
older


d.
magnetically reversed

Answers

Answer:

a. younger

Explanation:

HI friends good morning

The answer is C. Because it’s going to be older if it was created before the ocean crust .
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If you invest in lower risk investments its possible your money wont grow as fast as inflation, which means your money could be worth less when you eventually spend it.Higher risk investments, like shares and property, have a lot more ups and downs. Youd expect your returns to drop much more frequently, and in larger amounts and its hard to predict how theyll perform. However, if youre investing for a long period of time (at least 10 years) you should end up with a larger amount than if youd taken low, or no, risk.To sum up, investments can fail, regardless of your research. If you only have one investment, theres a risk you wont achieve your goal. You can protect yourself against this by making more than one investment, and making more than one type of investment. This is called diversification not putting all of your eggs in one basket.Summary:Risk isnt bad; its a normal part of investing. You can get the opportunity to receive if you have clear goals and attitude to risks. 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