What’s best describes the slope of the mountain that resulted from suck a phenomenal

What are the characteristics of living things

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.

All ova contain sex chromosomes corresponding to: x y xx xy