The fossil record shows that two groups of organisms are related, which means they share a

What are the four basic classes of organic molecules how do they differ structurally and functionally

Are salt and soap nutrients or toxins for yeast? explain.

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