Multiple Choice. Write the letter of the correct answer before the number in each item
1. Ribosomes, where protein synthesis occurs can be found in what part of the cell?

a. Rough endoplasmic reticulum
b. Cell membrane
c. Mitochondria
d. Nucleus

2. The differences of DNA and RNA are stated in terms of the following except

a. Backbone sugar
b. Nitrogen bases
c. Number of strands
d. Direction of coding

3. In messenger RNA, the complimentary base pair of adenine is:

a. Uracil
b. Adenine
c. Thymine
d. Cytosine

4. It is a ribonucleic acid or RNA that brings an amino acid to the ribosome

a. tRNA
b. mRNA
c. snRNA
d. rRNA

5. Which of the following enzyme opens the double helix at the start of a gene during transcription?

a. RNA transferase
b. DNA transferase
c. RNA polymerase
d. DNA polymerase

6. It is the process of making RNA from the DNA template in the nucleus of the cell:

a. Translation
b. Elongation
c. Transcription
d. Termination

7. In translation, the initiator tRNA binds to the mRNA with the anticodon and what amino acid?

a. Leucine
b. Isoleucine
c. Alanine
d. Methionine

8. In the termination stage of translation, what is added when there is a stop codon in the mRNA

a. tRNA
b. release factor
c. amino acid
d. peptide

9. How many stop codons are ther to terminate translation and stop protein synthesis?

a. 3
b. 2
c. 1
d. 0

10. It is a region of tRNA which is composed of three bases that are complimentary to mRNA:

a. Anticodon
b. Codon
c. Amino acid binding site
d. RNA polymerase ​