Reproduction questions | form six Biology

1. i. Briefly explain the concept of capacitation as it is related to reproduction

2. Outline two protective role of mammalian placenta to the foetus

2. The chromosomes number in a radical of a certain species of a flowering plant is 16. Giving reasons, calculate the number of chromosome in each of the following cells.

1. Pollen tube nucleus
2. Antipodal cell
3. Endosperm
4. Pollen mother cell
5. Integument cell

Answer / Solution

UNSOLVED

1. Distinguish between oestrus and menstrual cycles
2. Discuss the hormonal interactions involved in the control of menstrual cycle in human females
3. In what ways is menstrual prevented if pregnancy occurs?

Answer / Solution

UNSOLVED

Describe the events which comprise the mechanism of fertilization in mammals.

Answer / Solution

UNSOLVED

Give explanation to support the following facts:
(a) A placenta is a structure for excretion, digestion and respiration of a foetus.
(b) Removal of ovaries from a three months pregnant woman does not result to abortion.

Answer / Solution

UNSOLVED

State where and when meiosis takes place in each of the following organisms:
(i) Moss plant.
(ii) Angiosperms.
(iii) Mammals.

Answer / Solution

UNSOLVED