Grade 12 Gene Expression Worksheet
A worksheet for Grade 12 Biology students covering key concepts in gene expression, including transcription, translation, and regulation.
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Grade 12 Gene Expression
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Read each question carefully and provide your best answer. This worksheet covers the central dogma of molecular biology and gene regulation.
1. Which of the following best describes the process of transcription?
Synthesis of protein from an mRNA template.
Synthesis of DNA from an RNA template.
Synthesis of RNA from a DNA template.
Replication of DNA.
2. What is the role of tRNA during translation?
Carries genetic information from DNA to the ribosome.
Forms the structural component of ribosomes.
Transports specific amino acids to the ribosome.
Catalyzes peptide bond formation.
3. The enzyme responsible for synthesizing RNA from a DNA template during transcription is called .
4. In eukaryotes, after transcription, a primary RNA transcript undergoes several modifications, including splicing, 5' capping, and .
5. Gene expression is regulated only at the level of transcription.
True
False
6. The lac operon is an example of gene regulation in prokaryotes.
True
False
7. Briefly explain the difference between introns and exons.
8. Describe how gene expression can be regulated at the translational level.
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