1. A portion of a specific DNA molecule consists of the following sequence of nucleotide triplets. TAC GGA CTT GGG TCC
The DNA sequence codes for the following short polypeptide.
methionine -- leucine -- glutamic acid -- proline -- arginine
Describe the steps in the synthesis of this polypeptide. What would be the effect of a deletion or an addition in
one of the DNA nucleotides? What would be the effect of a substitution in one of the nucleotides?

answer; ///i believe the answer your looking for is (ribosomes);

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.