Answer:
D
Explanation:
Everything in there pollutes the environment.
Answer: They are called Telomeres.
Explanation:
Telomeres is a region of repetitive nucleotide sequence present at each end of chromosomes that protect the internal regions of the chromosome, they are cap down in a small amount t in every DNA replication.
Telomeres are found in many eukaryotic species ranging from human beings to unicellular protists.
Number 4 and why did you post this 3 times?
Heyy!
Your answer is A because Genes are functional unit of DNA, usually a segment of DNA in chromosome.
to sum it up Your answer Is A
Hope this helps!!