Enumerate the differences between asexual and sexual reproduction. Describe the types of asexual reproduction exhibited by unicellular organisms.

5

(a)

Although sexual Reproduction is a long drawn, energy intensive complex from of reproduction, many groups of organisms in Kindom Animalia and Plantae prefer this mode of reproduction. Give atleast three reasons for this.

5

(a)

Differentiate between
i) estrous and menstrual cycle
ii) oviparity and vivipary.Give an example of each type.

5

(a)

Do all the gametes formed from a parent organism have the same genetic composition (identical DNA copies of the parental genome)? Analyze the situation with the background of gametogenesis and provide or give a suitable explanation.

5

(a)

Differentiate between
(i) oestrus and menstrual cycle
(ii) ovipary and vivipary. Give an example for each type.

5

(a)