The segment of DNA below has undergone a mutation in which three nucleotides have been deleted. A repair enzyme would replace them with: G T A __ __ __ A A

C A T C C A T T

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.

Which of the following human activities resulted in the growth of the north american deer population?

You sample a population of butterflies and find that 56% are heterozygous at a particular locus. what should be the frequency of the recessive allele in this population?