Use the human characteristics to answer this question.
i. Complexion ii. Height iii. Blood Rh factor iv. Colour blindess

Which of the characteristics can be expressed phenotypically?

Which of the following variations is applicable to a weight lifter?

(i) Draw and label the human sperm cell.
(ii) State where the sperm cell is produced and where it is stored.

(b) Explain how the structure of the sperm cell enables it to function

(c) Mention four advantages of sexual reproduction.