There are two alleles of a gene present in a population: allele A1 and allele A2, and the frequency of the A2 allele in the gene pool is 0.7. Under Hardy-Weinberg, if A2 is a fatal recessive allele, what proportion of individuals born would you expect to die of its effect?

Select the correct answer. tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d

How can you tell the difference between rough er from smooth er?

What organ is the first to receive nutrients that have been absorbed from the digestive tract?