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BigorU [14]
3 years ago
8

The graphs below illustrate change in a lizard population over time. Which process most likely led to the change in the lizard p

opulation?
A
natural selection acting on a harmful trait

B
natural selection acting on a beneficial trait

C
natural selection acting on a dominant trait

D
natural selection acting on a recessive trait

Biology
2 answers:
Yanka [14]3 years ago
7 0

Answer: Option 'C' is correct.

Explanation:

Dominant traits are those traits which are visibly expressed in the organisms ( here, lizard)

Recessive traits are those traits in which genes are carried but it is not visible itself in the organisms.

Here, we can see that genes of Allele Z is carried by population of lizard in 50 years.

Here, it is natural selection acting on a dominant trait.

Hence, option 'C' is correct.

user100 [1]3 years ago
6 0
C. Z is capital, being a dominant gene. Dominant genes will begin to dominate the gene pool, hence the name given to them. I hope I helped, it’s been forever since I took bio!
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2 years ago
If the frequency of an allele is 0.75, how many copies of this allele should be in a population of 300 diploid individuals?
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I have provided the options below:

a. 150

b. 225

c. 300

d. 450

e. 75

Answer:

150

Explanation:

Hardy-Weinberg law states, the allelic frequencies of a gene that is, q and p follow the relationship p^2+q^2+2pq = 1, if the population is in equilibrium.

Therefore p^2+q^2+2pq = 1, can be used to calculate the percentage of the allelic frequencies i.e. p^2 and q^2

Allelic frequency = 0.75.

Therefore, the percentage of the allele in the population would be given by

0.75^2 = 0.5625 = 56%.

And the total number of individuals with this allele in the population:

number of individuals = 56×300÷100

= 168 or

150 nearest figure.

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