1) How many different types of amino acids are found in proteins?

A) 100

B) 200

C) 1,000

D) 20

E) 4

2) Proteins differ from one another because:

A) the bonds linking amino acids differ from protein to protein.

B) the sequence of amino acids in the polypeptide chain differs from protein to protein.

C) the number of nucleotides found in each protein varies from molecule to molecule.

D) the tRNA attached to the protein differs from protein to protein.

E) of the length of the mRNA.

3) When an mRNA moves into the cell’s cytoplasm, it first becomes associated with a:

A) protein.

B) tRNA.

C) ribosome.

D) transcription factor.

4) Transcription:

A) occurs on the ribosome.

B) is the final process in the assembly of a protein.

C) is the synthesis of RNA from a DNA template.

D) is catalyzed by DNA polymerase.

E) occurs in the cytoplasm.

5) The process that converts the information in DNA into RNA is:

A) translation.

B) replication.

C) transcription.

D) duplication.

E) meiosis.

6) What is the sugar found in an RNA nucleotide?

A) uracil

B) deoxyribose

C) ribose

D) glucose

E) thymine

7) Which of the following is a component of an RNA nucleotide?

A) uracil

B) deoxyribose sugar

C) thymine

D) glycine

8) Wherever there is an adenine on a DNA strand, during transcription it will be base-paired with a ________ on an RNA strand.

A) thymine

B) adenine

C) guanine

D) cytosine

E) uracil

9) If a DNA segment has the sequence GCTAA, what RNA sequence will be made from it?

A) GCTAA

B) CGATT

C) UGATT

D) CGUTT

E) CGAUU

10) The form of RNA that carries the information from DNA to the site of protein assembly isA) messenger RNA.

B) small nuclear RNA.

C) ribosomal RNA.

D) transfer RNA.

E) primary mRNA script.