Sponsored by allele.
Genes can exist in more than one form.
Each different form of the same gene is called an allele. For example, in the case of seed shape, there is one allele that determines wrinkled seeds and another allele that determines round seeds. The sequence of the bases in DNA determines the sequence of amino acids in all proteins found in living things. Describes the specific matching of base pairs. This matching occurs because the structure of one base precisely fits with, and bonds to, another specific base.