How is the variation brought in the progeny in the sexually reproducing organisms?
Answers
Answer:
During sexual reproduction two different parent i.e. male and female take part as a result of which the newly formed zygote possess genetic material of both parents. It leads to interchange of genetic information between two gametes which is passed to the progeny and develops variation.
Explanation:
In sexually reproductive organisms, the process of meiosis occurs in the germ cells which results in the formation of haploid gametes. Meiosis involves the process of crossing over in which the non-sister chromatids exchange their DNA and this results in genetic recombination. When the haploid gametes fuse, the genetic recombination results in variation of genotype and phenotype. Further, whenever DNA is replicated, there are chances of mutations that also produce variations.