Answer:
Nucleic acids are macromolecules that store genetic information and enable protein production. Nucleic acids include DNA and RNA.
Explanation:
By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. Often we can work out how and where they lived, and use this information to find out about ancient environments.
I do believe the answer is B
If there are two different alleles for a trait, this means t<span>he trait could show up in two different forms.</span>
