McDougal Littell ClassZone

1.

What molecule carries information from a gene to the ribosomes?

(A)

mRNA

(B)

DNA

(C)

rRNA

(D)

tRNA

2.

How does information flow according to the central dogma?

(A)

RNA --> DNA --> protein

(B)

protein --> RNA --> DNA

(C)

RNA --> protein --> DNA

(D)

DNA --> RNA --> protein

3.

Where does transcription occur in eukaryotes?

(A)

in the cytoplasm

(B)

in mitochondria

(C)

in the nucleus

(D)

in ribosomes

4.

What molecule is not made during transcription?

(A)

tRNA

(B)

mRNA

(C)

rRNA

(D)

DNA

5.

How is RNA different from DNA?

(A)

DNA contains a sugar that has one additional oxygen atom.

(B)

DNA contains uracil.

(C)

RNA is single-stranded.

(D)

RNA contains thymine.