Answer:
Option C
Explanation:
Given ,
A1 allele is carried by
% people
Let us assume A1 s dominant genotype
This means 
Thus, frequency of allele in the given population is 
It is also given that the population is in Hardy-Weinberg equilibrium thus

Frequency of fruit fly with genotype A2A2 will be

As per Hardy-Weinberg's second equation of equilibrium

Hence, option C is correct
Yes, it does, but not the way people think. it doesn't gain it from the weight of all the people. the earth takes mass from elsewhere, as our population continues to grow.
Answer:
There are numerous biology questions which can arise on the topic of cells.
<em>One of the question can be, 'Do plant cells respond to light?'</em>
A biology inquiry question is a question which arises in the mind of a person by observing some natural phenomenon. To answer the question, a hypothesis is formed which is a tentative statement which might or might not be supported through experiments. The results from the experiments form conclusion for answering the question.