Answer:
cause the vaccien is not complete
Explanation:
Answer:
Answer: The collection of all the genes and the various alternate or allelic forms of those genes within a population is called gene pool.
Chemical (mutagens)
usually either mimic the structure of nucleotides and are inserted in DNA or either cause
chemical changes (such as alkylation) in nucleotides hence causing mismatching during replication.
Radiation, on the other hand, (due to its high energy) causes double-strand breaks in DNA causing an
increased likelihood of mutations during the repair of the DNA by cell
mechanisms.
Chemical changes are not usually physical so you can’t see them I guess so I would put D
He discovered the theory that cells are created from the division of cells. He discovered many things related to cellular theory, pathology, and social medicine. He also discovered leukemia.