The phenotypic expression of a dominant gene in ayrshire cattle is a notch in the tips of the ears. in the pedigree below, where solid symbols represent notched individuals, determine the probability of notched progeny being produced from the mating: iii2 × iii3

correct answer is a. and d.

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)]