Review Quiz 2: DNA and RNA

A DNA strand has the sequence ATCGGC. Which is the complementary strand of DNA?

• UAGCCG

• GCTAAT

• TAGCCG

• UGTCCT

A single strand of DNA helix has the code ATAGGC. Which would be the complementary code on the other DNA strand of the helix?

• AUACCG

• CGCTTA

• GCGAAT

• TATCCG

A single strand of DNA helix has the code CGCTAA. Which would be the complementary code on the other DNA strand of the helix?

• CGCAUU

• TATCGG

• ATAGCC

• GCGATT

A DNA strand has the sequence ACCGAGCTT. Which is the complementary strand of RNA?

• TGGCTCGAA

• UGGCUCGAA

• GTTAGTGCC

• AGGTTCACA

What does DNA provide the code for?

• ribosomal activity

• protein synthesis

• deoxyribose formation

• nucleotide synthesis

Which base is found only in DNA?

• adenine

• guanine

• cytosine

• thymine

The structure of DNA resembles a twisted ladder or helix. Which structural components form the rungs of the ladder?

• deoxyribose sugars

• phosphate groups

• nitrogenous base pairs

• ribosomes

Where are the proteins for a cell made?

• mitochondria

• cytoplasm

• nucleus

• ribosomes

Which best summarizes the process of protein synthesis?

• RNA instructs DNA to make proteins.

• DNA unzips, resulting in the formation of two protein molecules.

• RNA moves the DNA code to the ribosomes for protein synthesis.

• DNA makes proteins in the nucleus.

Which never leaves the nucleus?

• RNA

• Ribosomes

• DNA

• Mitochondria