Mendelian Genetics [6F. R]:Question 1
In cocker spaniels the allele for a black coat color (B) is dominant
over the allele for a brown coat color (b). If a heterozygous black
cocker spaniel is crossed with a brown cocker spaniel, what fraction
of their offspring would be expected to have a brown coat?

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.

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)]