The enzyme responsible for breaking the hydrogen bonds between base pairs is O DNA helicase
O DNA polymerase
O glucase

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

If the rna molecule in a human has the nucleotide sequence of guu, this would the amino acid valine would be needed to make the protein. how would this cha process was occurring in a mushroom?

Do plant cells perform cellular respiration?