What is the probability that a pregnancy would result in ...
What is the probability that a pregnancy would result in a male child?
¾
½
1
¼
Correct answer is B
In humans, the sex of a child is determined by the combination of sex chromosomes received from the parents. The mother contributes an X chromosome, and the father contributes either an X chromosome (resulting in a female child) or a Y chromosome (resulting in a male child).
Since the father can contribute either an X or a Y chromosome, there are two possible outcomes for the sex of the child: male (XY) or female (XX). The chance of having a male child (XY) is equal to the chance of having a female child (XX).
Therefore, the probability of having a male child is 1 out of 2, which is represented as ½.
A function of the part labelled II is to ...
Which of the following substances is contained in chloroplasts? ...
Diffusion is most effective in living organisms, when the surface area is ...
Which of the following is not a way to conserve natural resources? ...
Which of the following statements is not correct about food chains? ...
Which of the following hormones are l, II, Ill, and IV respectively? ...
Which of the following organs is primarily responsible for excretion in humans? ...