Molecular Biology MCQs
Molecular Biology MCQs
Answer these Molecular Biology MCQs and assess your grip on the subject of Molecular Biology. Scroll below and get started!
1: For a ______ operon, transcription is normally on, and it is turned off by an active ______.
A. Negative inducible; repressor
B. Negative repressible; repressor
C. Positive repressible; activator
D. Positive inducible; activator
2: Usually, enzymes are ______.
A. Fats
B. Steroids
C. Chemical reactions
D. Proteins
3: During replication, the original "parent" dna _____.
A. Translate mRNA to produce a specific amino acid sequence
B. Serves as the template for the creation of two complete sets of DNA
C. Specific nucleotide sequence in DNA that signals a stop
D. None of these
4: During replication, each parent dna strand serves as a _____ for synthesis of new dna strands.
A. Scaffold
B. Reservoir
C. Copy point
D. Template
E. Comparison molecule
5: During telophase ______.
A. 44 autosomes and 2 X chromosomes
B. Homologous chromosomes line up in the middle of the cell
C. The events of prophase are reversed
D. Chromosomes line up in the middle of the cell
6: The initial product of transcription is referred to as the _____ transcript.
A. Primary
B. Inhibits translation
C. False
D. RNA processing.
E. True
7: A(n) _______ operon is turned off unless needed.
A. Repressible.
B. Constitutive
C. Inducible.
D. Clustered.
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Molecular Biology MCQs
