Answer:
In RNA the base thymine is essencially replaced by the base uracil. So the sequence TGAC in DNA would get copied into RNA as ACUG.
Adenine pairs with uracil in RNA like it pairs with thymine in DNA
Explanation:
<span>D) tightly packed electrons</span>
<span>It is the variable in an experiment is not directly altered</span>
There are four major classes of biological macromolecules:
carbohydrates.
lipids.
proteins.
nucleic acids.
