How can gene editing be used in medical research?

a.
it can insert genes from one species into another.

b.
it can change a few bases in a piece of mutated dna.

c.
it can make several exact copies of mutated genes.

d.
it can map the locations of whole genes on chromosomes.

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad

The negative impacts of nonnative species generally outweigh the positive impacts