Predict what would happen to a plant with a genetic defect that produced no central vacuole.

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.

What causes darkening of the skin as melanin production increases

In which layer do organisms on earth love?