What happens when dna is not copied correctly?

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.

Which description provides the best objective summary of the article in the passage?

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots