Question

49) To fight the recent outbreak of Zika virus in the Americas, scientists took advantage of to force a gene to be passed on to progeny that resulted in short-lived offspring that did not reach maturity. A) gene drive B) selective breeding C) DNA vaccines D) CRISPR-Cas

Answer 1

Correct option (A) Gene drive

Gene drives can be built from many naturally occurring selfish genetic elements that use a variety of molecular mechanisms. These naturally occurring mechanisms induce similar segregation distortion in the wild, arising when alleles evolve molecular mechanisms that give them a transmission chance greater than the normal 50.