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Protein Synthesis

1. A codon is:
a. The name of an amino group.
b. The group of three sequential nitrogen bases of an mRNA molecule.
c. The genetic code of an organism.
d. The process of converting DNA to RNA.

2. RNA is transcribed using:
a. mRNA
b. tRNA
c. DNA
d. A codon
e. Amino acids

3. Translation is defined as:
a. The process of converting the genetic code in RNA into the amino acid sequence that makes up a protein
b. The process of transcribing the RNA using DNA as a blueprint
c. The process of moving the mRNA across the plasma membrane for protein synthesis
d. The process of converting the genetic code in the DNA into the amino acid sequence that makes up a carbohydrate
e. The process of converting proteins into amino acids

4. The actual synthesis of the protein takes place in the
a. Nucleus
b. Ribosome
c. Mitochondria
d. DNA
e. Codon

5. Freely floating amino acids in the cytoplasm are brought to the mRNA using
a. tRNA
b. DNA
c. Proteins
d. mRNA
e. Anticodon

6. An anticodon is defined as
a. The region of the tRNA that binds with the freely floating amino acid
b. The region of the tRNA that is a copy of the codon on the mRNA
c. The region of the tRNA that isn't used in protein synthesis.
d. The region of the mRNA that binds with the amino acid
e. The region of the tRNA that is the complementary of the codon on the mRNA.

7. Which of the following codon match-ups are true
a. Uracil with Adenine, Guanine with Thymine
b. Uracil with Adenine, Thymine with Cytosine
c. Guanine with Cytosine, Uracil with Adenine
d. Guanine with Cytosine, Uracil with Thymine
e. Guanine with Adenine, Cytosine with Thymine

8. Once the protein is released,
a. The ribosome converts the rest of the amino acid into proteins.
b. The mRNA joins with another mRNA to form a DNA.
c. The mRNA is released from the ribosome.
d. The ribosome enters the nucleus to get another mRNA.
e. None of the above.

9. Which of the following is false
a. Ribosomes are required for protein synthesis.
b. mRNA is complementary to that of a specific region of DNA.
c. tRNA brings the amino acid to the ribosomes.
d. Protein synthesis occurs in the nucleus.
e. The ribosomes move down the mRNA as protein synthesis progresses.

10. Translation starts when:
a. The mRNA moves out of the nucleus.
b. The mRNA connects to a ribosome.
c. The tRNA starts attaching to the mRNA.
d. The DNA produces mRNA
e. None of the above

 

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