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3 years ago

Why doesn't asexual reproduction result in variation among offspring and parents?

2 answers:

4 0

Asexual reproduction is the creation of offspring from one parent. There is no mating or mixing of genetics in asexual reproduction. Asexual reproduction results in a clone of the parent, meaning theoffspring has identical DNA as the parent. There is usually no variation from generation to generation in a species population

nalin [4]3 years ago

3 0

There is no mating or mixing of genetics in asexual reproduction. Asexual reproduction results in a clone of the parent; the offspring has identical DNA as the parent. There is usually no variation from generation to generation in a species population that relies on asexual reproduction.

One way for an asexually reproducing species to get some diversity is through mutations at the DNA level. If there is a mistake in mitosis or the copying of the DNA, then that mistake will be passed down to the offspring, thereby possibly changing its traits. Some mutations do not change the phenotype, however, so not all mutations in asexual reproduction result in variations in the offspring.

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A scientist samples a population of butterflies and finds that 56% are heterozygous at a particular locus. If the population is

d1i1m1o1n [39]

0.44 the frequency of the homozygous individuals in this population.

What is Hardy-Weinberg principle ?

The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.

From the Hardy Weinberg Law of Population and Genetics,

We have

x²+2xy+y²=1 and

x+y=1

where

x = frequency of the dominant allele in the population

y = frequency of the recessive allele in the population

x2 = percentage of homozygous dominant individuals

y2 = percentage of homozygous recessive individuals

2xy = percentage of heterozygous individuals

Given 2xy = 0.56

from here, y=0.28/x, (the frequency of the recessive allele ) can be obtained

we need to find 'x'

recall, x+y=1, x=1-y

substituting this gives us

y=0.28/(1-y), which becomes,

y(1-y)=0.28

y²- y + 0.28 (quadratic equation)

Solving this to find 'y' gives two imaginary values of y = 0.44 but ,

There is no imaginary solution .

Learn more about Hardy Weinberg Law of Population

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2 years ago

All of the following are considered to be part of the biosphere, except __________.

Zielflug [23.3K]

Answer:

Explanation:

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3 years ago

Read 2 more answers

50 POINTS

lapo4ka [179]

City-state government was often conquered because they did not have enough resources to protect themselves

Explanation:

A city-state government is an independent autonomic political system which usually compromises just a single independent city which is governed by itself with sovereignty over its territory. The city-states like Greece, Italy, and Rome etc became very powerful.

The main reason for these city-states being conquered more was the accumulation of wealth and aristocracy in such states.

Heavy taxes, religion, slavery also lead to social unrest and conflicts among these city-states which made them weaker. These internal conflicts also made them lose their resources and vulnerable to be conquered by other powerful empires.

With the increasing power of neighboring states, like in the case of Rome and Greece, the Romans became mightier than Greeks at one point and conquered the Greek city-states.

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3 years ago

What is malaria?biology

Vitek1552 [10]

Answer:

Malaria can be described as a disease which is caused by a parasitic organism. The Anopheles mosquito carries the parasite Plasmodium in it. When this mosquito bites a human being, the parasite gets transferred into the blood of the person causing malaria. Before entering the blood cells, the plasmodium travel to the liver where they get matured.

Malaria is a life-threatening disease which kills many humans each year, especially people living in underdeveloped countries.

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3 years ago

Which common practice puts the nurse at liability for invasion of patient privacy?

harina [27]

Answer;

-The nurse gives information about the patient to telephone callers who inquire about the patient.

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-Invasion of privacy and confidentiality are of critical legal and medical concern. The right to privacy means that a client has the right to expect that his or her property will be left alone. Healthcare individuals may be charged with trespassing, illegal search and seizure, or releasing private information (even if the information is true).

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3 years ago