The recessive trait will only be expressed as the phenotype when both of the alleles are .

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.

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

An example of a trait that would be considered acquired and inherited is a. a cleft chin b. muscle tone c. scar tissue d. freckled skin