When atoms bond, electrons can be or

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.

Twind is considered to be an abiotic factor because it.?

At which location in earth’s interior does the top density continue to increase as thickness decreases?