Some macromolecules are formed from one or two or small molecular fragments that repeat.

If the coding part of an mrna molecule is 1800 nucleotides (bases) in length, this molecule will contain codons and code for a polypeptide that is amino acids long.

If a baby girl guinea pig looks almost identical to its mother, does this then mean that it inherited more alleles from its mother? explain. (hint: think about the vocabulary words dominant and recessive.)

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring