Some individuals have a mutated recessive allele and a homozygous individual is resistant to hiv infection and aids. some populations have a high frequency of the mutant allele. what inference can be made about the mutant allele?

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?

What is an example of a scientific question that galileo could not have answered with out this new tool?