There is a gene that controls arm length in lizards. the a allele codes for long arms, and the a allele codes for short arms. the a allele is recessive to the a allele. if two heterozygous lizards mated, what percentage of the offspring would have long arms?

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)]