Messenger RNA (mRNA) Worksheet
Explore the structure, function, and importance of messenger RNA (mRNA) in gene expression for Grade 11 biology students.
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Messenger RNA (mRNA) Worksheet
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Read each question carefully and answer to the best of your ability. Refer to your notes and textbook as needed. This worksheet will assess your understanding of messenger RNA (mRNA) and its role in gene expression.
1. What is the primary function of messenger RNA (mRNA)?
To synthesize proteins directly
To carry genetic information from DNA to ribosomes
To form the structural component of ribosomes
To transport amino acids to the ribosome
2. Which of the following is NOT a characteristic of mRNA?
It is single-stranded.
It contains deoxyribose sugar.
It contains the nitrogenous base uracil.
It is synthesized during transcription.
3. The process of synthesizing mRNA from a DNA template is called .
4. In eukaryotic cells, mRNA undergoes post-transcriptional modifications, including the addition of a 5' cap and a tail.
5. A sequence of three nucleotides on mRNA that codes for a specific amino acid is known as a .
6. Briefly explain the significance of the 5' cap and poly-A tail in mRNA.
7. Describe the role of codons on mRNA during protein synthesis.
8. mRNA is typically double-stranded.
True
False
9. Ribosomes read mRNA in the 3' to 5' direction.
True
False
10. Observe the diagram below showing the general structure of mRNA. Label the indicated parts (A, B, C).
A:
B:
C:
Use the words from the word bank to complete the sentences below.
11. mRNA is synthesized in the of eukaryotic cells.
12. Protein synthesis, or , occurs on the in the .
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