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Reproduction questions

Reproduction questions | form six Biology

Find Reproduction examination questions, form six Biology in acaproso.com

# Question
1
  1. i. Briefly explain the concept of capacitation as it is related to reproduction
  1. Outline two protective role of mammalian placenta to the foetus
  1. 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

Long answers
2
  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?

Long answers
3

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


Long answers
4

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.


Short answers
5

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


Short answers
6

The number of chromosomes in the radicle of certain species of flowering plant is 16. Evaluate the number of chromosomes in the following cells:
(i) Pollen tube nucleus
(ii) Antipodal cell
(iii) Endosperm
(iv) Pollen mother cell.


Short answers