Identify an adaption of the coronavirus

Aperson with age is more likely to catch diseases that healthy people usually don’t catch. what are these infections called?

What are the 3 types of artificial cloning

Recombinant dna is the merging of dna from unrelated organisms to create new genetic varieties is assembled in the lab from mononucleotides was part of the green revolution of the 1960s is pollination of one plant by another of the same species is cross-pollination of one plant by a different species