(N/A) $1$. Sexual reproduction provides opportunities for variations and the formation of unique combinations of genetic setups,some of which may be beneficial to the organism as well as the population.
$2$. Asexual reproduction preserves genetic information,while sexual reproduction permits variation.
$3$. Traditional hybridization procedures used in plant and animal breeding very often lead to the inclusion and multiplication of undesirable genes along with the desired genes.
$4$. To overcome such limitations,Genetic Engineering is the best approach.
$5$. In Genetic Engineering,recombinant $DNA$ is created using gene cloning and gene transfer.
$6$. Thus,Genetic Engineering allows us to isolate and introduce only one or a set of desirable genes without introducing undesirable genes into the target organism.