Sexual reproduction leads to

How many types of gametes will be produced by a $O$ Drosophila having following arrangement of
two genes ($y*$ and $w*$) on $X-$chromosome?

Exchange of genetic material between chromatids of homologous chromosomes during meiosis is called

What is recombination ? Discuss the applications of recombination from the point of view of genetic engineering.

Who used the frequency of recombination ?