question_answer

Although sexual reproduction is a long drawn, energy intensive complex form of reproduction, many groups of organism in kingdom Animalia and Plantae prefer this mode of reproduction. Give at least three reasons for this.

Answer:

Three reasons for mode of sexual reproduction:

(a) Sexual reproduction results in offspring that are not identical to the parents or to themselves and create variation in them.

(b) Since gamete formation is proceeded by meiosis, genetic recombination occuring during crossing over in meosis-I leads to a great deal of variation in the DNA of gametes.

(c) The organism has better chance of survival in a changing environment.