SAT II Biology E : RNA Structure and Function

Study concepts, example questions & explanations for SAT II Biology E

varsity tutors app store varsity tutors android store

Example Questions

Example Question #31 : Dna, Rna, And Proteins

In RNA, three nucleotide bases together determine the amino acid that is added to the growing polypeptide chain during translation. This three base grouping is known as a(n) __________.

Possible Answers:

operator

codon

gene

promoter

polypeptide

Correct answer:

codon

Explanation:

The three base grouping in RNA that determines the amino acid created in translation is known as a codon. Gene refers to the region on DNA that codes for a given trait. Operators and promoters are also located on DNA, and act as regulatory elements.

Learning Tools by Varsity Tutors