question_answer 113)

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

Answer:

                  Following are the three reasons for the mode of sexual reproduction in higher group of organisms (i) The sexual mode of reproduction ensures creation of new variants. (ii) Genetically varied off springs are produced that adapt to changes in environment and survive in all climatic conditions. (iii) Sexual reproduction ensures the genetic recombination that results in variation which gives rise to evolution.