Answer: Hi.... I hope it helps!!
Skin Pigmentation in humans
Explanation: Polygenic inheritance- It is simply a single characteristic which is controlled by more than two genes. Human skin's color is determined by the amount of dark pigment it has which is melanin
. Minimum four genes are involved in the melanin production.
It is a case of continuous variation as the combination of melanin producing allele are responsible for degree of pigmentation
<span>Downward dislocation of the humerus, which is the long bone in the upper arm located between the elbow joint and the shoulder, from the glenohumeral joint when carrying weight is prevented by the supraspinatus muscle. Which is a small muscle of the upper back.</span>
The air pressure is increasing from the particles space increasing.
Answer:
Homologous chromosomes exchange DNA with one another.
Explanation:
During crossing over, the two Homologous chromosomes line up next to eachother and the DNA "crosses over" changing the genes on the chromosome.
