A colour - blind man married a woman who is the daughter of a colour - blind father and mother homozygous normal vision. What is the probability of their daughters being colour-blind ?

A colour blind man marries a woam with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind?

A normal visioned man whose father was coloured blind, marries a woman whose father was also colour blind. They have first child as a daughter. What are the chances that this child would be colour blind.

A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind?

You find "Rainbow" in the sky with different colours. What is the probability that one of its colours being black?

From a certain population, the probability of chosing a colour blind man is (1)/(20) and that of a colour blind woman is (1)/(10). If a randomly chosen person is found to be colour blind, then the probability that the person is a man is

A normal visioned girl has a normal visioned brother and a colour blind sister. Their parents are

Think of your own family, what similarities do you share with your father and mother? Draw a table to represent the similarities of some characters like colour of eye (cornea), colour of hair, shape of nose, shape of face, type of earlobe (attached or free) inner thumb markings, etc. Write your characters in one column and that of your parents in the other columns. (Q) . is there any character that is not present in grandma but present in your mother and you ?