Answer:
D. A nitrogen base has been added to the DNA molecule.
Explanation:
You can see that the sequence for the nitrogen bases are in the exact same order after the exposure, this rules out A. You can count how many bases there are, 7 before and 8 after so it cannot be B. Lastly, given that they are in the same order as were before and that a base has been added, you can see that no bases were replaced (so not C) and that D is your answer.
The central nervous system and the peripheral nervous system
It is a. all genetic material comes from one parent
Answer: what is the major environmental factor limiting the number of autotrophs at great. Which abiotic factor has the least effect on the ability of aerobic organisms to live and, all living things that directly or indirectly affect the environment are known as. Which statement about the release of chemicals by willow trees is correct?
Explanation:
