About 70 percent of all Caucasians can taste the chemical phenylthiocarbamide, and the remainder cannot. The ability to taste this chemical is determined by the dominant allele T, and the inability to taste is determined by the recessive allele t. If the population is assumed to be in Hardy-Weinberg equilibrium, what is the heterozygotes frequency in this population? a. 0.7 b. 0.4 c. 0.2

Grey eyes (b) are recessive to brown eyes (B) in rabbits. In an ideal rabbit population exhibiting Hardy–Weinberg equilibrium, if allele b has a frequency of 0.33, what percentage of the population is heterozygous for this trait?  Round your answer to the nearest whole number %.

A new species of snail was discovered. Your initial population genetics survey found that fA:0.48. To determine the primary mode of reproduction you survey the population again in one generation. You collect 100 individuals in the next generation. The composition of your collection is AA=38, Aa=20, aa=42. What is the primary mode of reproduction?   a. random mating   b. not enough information to determine   c. nonrandom mating due to inbreeding

In a Hardy-Weinberg population with two alleles, G and g, that are in equilibrium, 40% of the alleles are recessive. What percentage of the population is homozygous for the dominant allele? a. 9% b. 36% c. 70% d. 60% e. 30%