When a chemical has occured on you clothes you should ?

Scientific thinking: what clues about biology might road kill provide?

Complete the possible outcomes for each generation in the pedigree chartaa aa aa

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.