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Deffense [45]
3 years ago
14

Which of the following is not a reason why cells divide

Biology
1 answer:
brilliants [131]3 years ago
6 0

Answer: What are my answer choices?

Explanation:

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One type of natural selection is balancing selection. One scenario that can lead to balancing selection is when a heterozygote p
Dahasolnce [82]

Answer:

The genotype, A1A2, will become fixed in the population.

Explanation:

Balancing Selection is a process that can be achieved in many ways, most of the times, when the heterozygotes for the alleles being analyzed have a better fitness than the homozygote. More importantly, bàlancing selection explain the different ways of selective processes by which various alleles, that is, different types of a gene are constantly maintained in the gene pool of a population at rate higher than the usual from genetic drift alone.

Using calculation to understand better

The Hardy-Weinberg principle can be used in this case to calculate genotype frequencies from allele frequences.

From assumption A1 and A2 are two alleles at the same locus,

p is the frequency of allele A 0.5 =< p =< 1

q is the frequency of allele A2 0.5 =< q =< 1,

and p + q = 1

where the distribution of allele frequencies is the same in men and women, i.e.:

Male(p,q) female (p,q)

if they procreate : (p + q)2 = p2 + 2pq + q2 = 1

where:

p2 = frequency of the A1 A1 genotype <-- HOMOZYGOTE

2pq = frequency of the A1 A2 genotype <-- HETEROZYGOTE

q2 = frequency of the A2 A2 genotyp <-- HOMOZYGOTE

these frequencies remain constant in successive generations.

The Allele frequency in the 10th generation

A1A1 A1A2 A2A2

1st Generation p2 2pq q2

10th Generation F(A1) = W+ Y/2 = p2 +1/2 (2pq) = p (p+q) = p

F(A2) = Z + H/2 = q2 +1/2 (2pq) = q (p+q) = q

The result is that, there is no change in allele frequencies:

in the 1st/current generation, we have p and q

in the 10th generation, we have p and q

Note: The frequencies of genotypes F(G) be called W, Y, and Z

with 0 =< [D,H,R] = < 1

and D + H + R = 1

The frequencies of alleles F(A) be called p, and q

with 0 =< [p,q] =< 1

and p+q = 1

The Hardy–Weinberg principle, otherwise known as the Hardy–Weinberg equilibrium, model, theorem, or law, "states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences."

7 0
3 years ago
2. Which of the following would best describe the role of enzymes in cells?
Elenna [48]

Explanation:

The answer is; enzymes speed biochemical reactions by rearranging molecular structure to support the cell function. protein catalysts ..

the answer is D.

6 0
2 years ago
Which set of ecological organization levels is most likely to contain the largest variety of species?
garik1379 [7]
I believe the answer is 2: multiple ecosystems in a biome
4 0
3 years ago
Any condition in an experiment that can be changed?
SCORPION-xisa [38]
Any condition in an experiment that can be changed is a control variable!!
You control it!!
6 0
3 years ago
A woman with type AB blood is married to a man with type O blood.
Viktor [21]

Answer:

Jordan

Explanation:

In most cases, an O parent and an AB parent will have only A or B kids.

7 0
2 years ago
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