BIDEN 2020 AND THATS ON PERIODT

What does it mean for a cell membrane to be selectively permable

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.

Where can a dna be found in a prokaryotic cell