Question

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 at least three reasons for this.

Answer 1

a. Sexual reproduction brings about variation in the offspring.
b. Since gamete formation is preceded by meiosis, genetic recombination occurring during crossing over (meiosis-I), leads to a great deal of variation in the DNA of gametes.
c. The organism has better chances survival in a changing environment.