Which of the following is not a source of genetic variation?
a. mutations
b. sexual reproduction
c. lateral gene transfer
d. asexual reproduction

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

What does the positioning of transcription factors determine?

Can someone give me the answers to this?