The g2 checkpoint prevents the cell cycle from continuing until

The G2 check point prevent the cell cycle from continuing untill the damaged DNA is being repaired.

Explanation:

G2 checkpoints are one of the most significant point of the cell cycle that occur in the border of G2 phase and M phase.G2 check point signals the cell to enter the mitotic phase.

      G2 checkpoint perform that function after ensuring that the chromosome has been replicated in a correct fashion and cell entering the mitotic phase should not contain damaged DNA.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.