Fortune Telling Collection - Fortune-telling birth date - Do you have a "beauty secret"? A person's V-shaped hair tip is a V-shaped hair tip with a downward protruding hairline in the middle of the forehead, commonly known as a beautiful tip (as shown in Fig
Do you have a "beauty secret"? A person's V-shaped hair tip is a V-shaped hair tip with a downward protruding hairline in the middle of the forehead, commonly known as a beautiful tip (as shown in Fig
(2) The child's hair is flat and pointed, and the genetic component is AA; Children's paired genes come from father and mother respectively, indicating that both parents have recessive gene A; Parents present V-shaped hair tips, indicating that parents also carry dominant gene A; That is, the genetic composition of the father is Aa, and the genetic composition of the child is AA.
(3) The genetic map of this couple is as follows:
When a parent's genome becomes Aa, a newborn child will show a V-shaped hair tip. There are two possibilities for the genetic makeup of this child: AA or AA; The probability of the couple giving birth to a flat-haired baby is 1 4, while the probability of giving birth to a daughter is 1 2, so the probability of giving birth to a daughter with flat hair is 1 4 × 1 2 = 1 8.
So the answer is:
(1) relative character; superiority
(2)Aa; alcoholic anonymous
(3)AA; aa; 1 8
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