PROTEIN SYNTHESIS

Which molecule carries a copy of the genetic information out of the nucleus?

• A. amino acid mRNA

• B. mRNA

• C. rRNA

• D. tRNA

2. What do you call the sequence of three bases in mRNA that corresponds to an amino acid?

• A. amino acid

• B. anticodon

• C. code

• D. codon

3. What do you call the sequence of three bases in tRNA that corresponds to an amino acids?

• A. amino acid

• B. anticodon

• C. code

• D. codon

4. Where does transcription take place?

• A. Golgi bodies

• B. mitochondria

• C. nucleus

• D. ribosome

In the RNA molecule, which nitrogen base is found in place of thymine?

• A. cytosine

• B. guanine

• C. thymine

• D. uracil

During the process of transcription, which of the following is produced?

• A. ATP

• B. DNA

• C. H2O

• D. mRNA

Events that take place during the synthesis of a specific protein are listed below.

A. Messenger RNA attaches to a ribosome.

B. DNA serves as a template for the production of RNA.

C. Transfer RNA bonds to a specific codon

D. Amino acids are bonded together.

E. RNA exits from the nucleus to the cytoplasm.

The correct order of these events is ______________

• A. B E A C D

• B. D A E C B

• D. C B A E D

How many codons are needed to specify three amino acids?

• A. 3

• B. 6

• C. 9

• D. 12

If the DNA template reads “ATA”, which of the following would be the corresponding mRNA codon?

• A. ATA

• B. TUT

• C. UAU

• D. UCU

Amino acids are held together by ____ bonds.

• A. hydrogen

• B. ionic

• C. high energy

• D. peptide