The correct answer is A.) Sister chromatids pulled to opposite pole, nucleoli form, cytokinesis.
Answer:

Explanation:
Given -
Total Population - 
Individuals with homozygous HbA/hbA genotype - 
Individuals with homozygous hbs/hbs genotype -
Individuals with heterozygous hba/hbs genotype - 
Let us assume the given population is in Hardy Weinberg' equilibrium
The frequency of individuals in the given population with homozygous HbA/hba genotype is equal to number of individuals with homozygous HbA/hba genotype divided by total population.

The frequency of hba allele is equal to

Answer: BY Exercise. Or by morning waly
Explanation:beacuse due to walk our blood flow rapidly and provide more boold to brain and spinal cord. Which helps go keep our nervous system healty