If a mutant trait is adaptive will it become more/less common, or have no effect ?

What two fields of study provide the core information that is used to classify organisms?

Name one similarity and one difference between the morphology of a brachiopod and a bivalve

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.