Biology 5.12: Unit Test Molecular Genetics - Part 1
Exam Questions with Correct Answers
1. What is the name of the process in which tRNA is involved in
making pro- teins? correct answers: translation
2. Which pathway is correct? correct answers: DNA to RNA to proteins
3. Which statement about the diagram is correct? correct answers: Molecule 1 is
DNA because it is a double helix.
4. Molecule 1 has the following sequences of bases correct answers:
TCAAGT .
Which set of bases in Molecule 2 will bond to this sequence in a
complementary way? correct answers: AGUUCA
5. Which statement explains the overall function of the two molecules in
the diagram? correct answers: They provide information about how an organism is put
together and maintained.
6. Which statement describes a step in DNA replication? correct answers: The
double helix unwinds, and
each side is a template for a new strand.
7. According to the base-pairing rules for DNA , which statement is not
true? correct answers: T always pairs with G.
8. The diagram shows the process of transcription, which takes place
in the nucleus of a cell.
What is occurring? correct answers: DNA is being used as a template to make a molecule of
mRNA .
9. What happens to mRNA after it completes transcription? correct answers: It
enters the cytoplasm and moves toward ribosomes.
10. Which two types of RNA pair up using a codon-anticodon link? correct
answers: mRNA and tRNA
11. This diagram shows the process of translation.
Which statement is correct? correct answers: The mRNA code determines which tRNA
molecules are used.
12. Which structure is missing from the diagram, but helps mRNA and
tRNA bind together? correct answers: ribosome
13. Where does protein-building begin? correct answers: DNA
14. A piece of mRNA has the code AUGCCAUUGACG .
Which amino acids are coded in this strand? correct answers: methionine, proline,
leucine, threonine
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Exam Questions with Correct Answers
1. What is the name of the process in which tRNA is involved in
making pro- teins? correct answers: translation
2. Which pathway is correct? correct answers: DNA to RNA to proteins
3. Which statement about the diagram is correct? correct answers: Molecule 1 is
DNA because it is a double helix.
4. Molecule 1 has the following sequences of bases correct answers:
TCAAGT .
Which set of bases in Molecule 2 will bond to this sequence in a
complementary way? correct answers: AGUUCA
5. Which statement explains the overall function of the two molecules in
the diagram? correct answers: They provide information about how an organism is put
together and maintained.
6. Which statement describes a step in DNA replication? correct answers: The
double helix unwinds, and
each side is a template for a new strand.
7. According to the base-pairing rules for DNA , which statement is not
true? correct answers: T always pairs with G.
8. The diagram shows the process of transcription, which takes place
in the nucleus of a cell.
What is occurring? correct answers: DNA is being used as a template to make a molecule of
mRNA .
9. What happens to mRNA after it completes transcription? correct answers: It
enters the cytoplasm and moves toward ribosomes.
10. Which two types of RNA pair up using a codon-anticodon link? correct
answers: mRNA and tRNA
11. This diagram shows the process of translation.
Which statement is correct? correct answers: The mRNA code determines which tRNA
molecules are used.
12. Which structure is missing from the diagram, but helps mRNA and
tRNA bind together? correct answers: ribosome
13. Where does protein-building begin? correct answers: DNA
14. A piece of mRNA has the code AUGCCAUUGACG .
Which amino acids are coded in this strand? correct answers: methionine, proline,
leucine, threonine
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