Each member of a class sampled a piece of ptc testing paper. thirty people sampled the chemical.

twenty persons were tasters. how many had homozygous genes?

10-30
10
10-20
0-10

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

explanation:

okay now i don't know this but for the pints nothing else to say bye