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AP BIOLOGY

1. Chemistry of Life

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2. Cells

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3. Cellular Energetics

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4. Cell Communication and Cell Cycle

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5. Heredity

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6. Gene Expression and Regulation

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7. Natural Selection

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8. Ecology

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AP Biology - Plants and Human Body Systems

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AP Biology - Laboratory review

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AP Biology - Diagnostic exam

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AP Biology - Practice Test 1

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Quiz

AP Biology Chapter 11 – Molecular Genetics – Question bank

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Molecular Genetics AP Biology question bank: free practice for AP Biology. Work through this Molecular Genetics AP Biology question bank and get instant feedback on every answer. If you get stuck, review the 6.8 Biotechnology — Notes lesson. More practice: AP Biology — all units. Syllabus: College Board ap biology course page.

  • Questions count: 11
  • Passing grade: B+
  • Time limit: 11 minutes
Start Quiz
1.
Which of the following statements is incorrect?
Which of the following statements is incorrect?
Messenger RNA must be processed before it can leave the nucleus of a eukaryotic cell.
A virus in the lysogenic cycle does not kill its host cell, whereas a lytic virus destroys it.
DNA polymerase can add nucleotides only in a 5-to-3 direction.
During translation the A site holds the tRNA carrying the growing protein, while the P site holds the next amino acid.
Viroids are plant viruses only a few hundred nucleotides in length.
2.
The process of transcription results in the formation of
The process of transcription results in the formation of
DNA.
proteins.
lipids.
RNA.
carbohydrates.
3.
Which of the following codons signals the beginning of the translation process?
Which of the following codons signals the beginning of the translation process?
AGU
UGA
AUG
AGG
UAG
4.
Which of the following is an improper pairing of DNA or RNA nucleotides?
Which of the following is an improper pairing of DNA or RNA nucleotides?
Thymine-adenine
Guanine-thymine
Uracil-adenine
Guanine-cytosine
Pyrimidine-purine
5.
Which of the following is responsible for the type of diseases that includes \"mad cow\" disease?
Which of the following is responsible for the type of diseases that includes "mad cow" disease?
Viroids
Plasmids
Prions
Provirus
Retrovirus
6.
Which of the following is the correct sequence of events that must occur for translation to begin?
Which of the following is the correct sequence of events that must occur for translation to begin?
tRNA binds the small subunit, then the large subunit attaches, then mRNA binds and translation begins.
mRNA attaches to the small ribosomal subunit with its first codon in place, attracting a tRNA; the large subunit then binds and translation begins.
mRNA attaches to the large subunit with its first codon in place, attracting a tRNA; the small subunit then binds.
tRNA binds the large subunit, then the small subunit attaches, then mRNA binds.
tRNA attaches to the large subunit and attracts the mRNA; the small subunit then binds.
7.
All the following are players involved in the control of gene expression except
All the following are players involved in the control of gene expression except
episomes.
repressors.
operons.
methylation.
hormones.
8.
Which of the following does not occur during RNA processing in the nucleus of eukaryotes?
Which of the following does not occur during RNA processing in the nucleus of eukaryotes?
The removal of introns from the RNA molecule
The addition of a string of adenine nucleotides to the 3 end
The addition of a guanine cap to the 5 end
The ligation of exons of the RNA molecule
The addition of methyl groups to certain nucleotides of the RNA molecules
9.
Which of the following statements is not true of a tRNA molecule?
Which of the following statements is not true of a tRNA molecule?
The job of transfer RNA is to carry amino acids to the ribosomes.
Each tRNA has an anticodon complementary to a particular codon.
Each tRNA molecule has a short lifespan and is used only once during translation.
Aminoacyl tRNA synthase ensures a tRNA carries the right amino acid.
Transfer RNA is transcribed from DNA templates within the nucleus.
10.
Which of the DNA pieces in the gel is smallest in size? (see the figure)
Which of the DNA pieces in the gel is smallest in size? (see the figure)
A
B
C
D
E
11.
If well 1 is DNA from a crime scene, which individual should contact a lawyer? (see the figure)
If well 1 is DNA from a crime scene, which individual should contact a lawyer? (see the figure)
Person 2
Person 3
Person 4
Person 5
Person 6
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
Part of 6. Gene Expression and Regulation — see every lesson and quiz in this unit.
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