The figure below shows a punnett square that crosses a male and a female. What are the chances of having a boy or a girl?

what are the male and female gametes called ?

Both males and females have same number of chromosomes in

If a female having gene for haemophilia and colour-blindness on its one X-chromosome marries a normal male then what are the chances in their offsprings :

The bar graph shows the total number of male and female lives in four different towns and table shows the number of males and females whose ages are above 40 years. Read the data carefully and answer the questions below: If 40% of population in town B whose ages are below and equals to 40 years are male and 40% of population in town D whose ages are below and equals to 40 years are female. Find the difference between the females of town B and D whose ages are below and equals to 40 years.

Male frog differs from the female frog in having

Male rabbit differs from female rabbit in having :