The conditions that surround someone or something. these conditions and influences affect the growth, health, progress, etc., of someone or something

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.

How can you tell the difference between rough er from smooth er?