Two people (both heterozygotes) are able to taste a chemical substance called ptc. the ability to taste ptc is caused by a dominant allele (t). the inability to taste ptc is caused by a recessive allele (t). what proportion of their children would be expected to have the ability to taste ptc? (hint: use a punnett square).

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.