There is a long period of time between the onsets of the illness and the deaths.
Answer:
To make sure the genes are constantly being expressed
Explanation:
H+ is positive and OH- is negative. When you put the charge with the name, it becomes quite clear. Only on certain occasions can hydrogen atoms become negatively charged but hydrogen usually loses electrons.
Answer:
Skin pigmentation in humans
Explanation:
Skin pigmentation is a very common example in polygenic inheritance. This inheritance is represented by two gene pairs: Aa and Bb.
Thus, A and B determine the production of the same amount of melanin pigment and have additive effect. Therefore, there are several shades of color in human skin, according to the amount of genes A and B.
Offspring of parents with one very dark skinned and one very light skinned may give an intermediate skin color. Heterozygous parents for skin color can lead to offspring with darker or lighter skin than their own.