Which one of the following statements is correct?
A - VCE - SSCE Biology - Question 5 - 2018 - Paper 1
Question 5
Which one of the following statements is correct?
A. Transacetylase, permease and ß-galactosidase are exons that digest allolactose.
B. Section X is the regulatory... show full transcript
Worked Solution & Example Answer:Which one of the following statements is correct?
A - VCE - SSCE Biology - Question 5 - 2018 - Paper 1
Step 1
A. Transacetylase, permease and ß-galactosidase are exons that digest allolactose.
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Answer
This statement is incorrect. Transacetylase, permease, and ß-galactosidase are enzymes involved in lactose metabolism, but they are not described as exons that digest allolactose.
Step 2
B. Section X is the regulatory gene for the lac operon.
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Answer
This statement is also incorrect. The regulatory gene for the lac operon is not referred to as Section X. The lac operon is regulated by the lacI gene, which encodes the repressor protein.
Step 3
C. Molecule Q is a repressor protein.
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Answer
This statement is correct. Molecule Q likely refers to the repressor protein involved in the regulation of the lac operon, which binds to the operator region and inhibits transcription.
Step 4
D. Molecule P is a tRNA molecule.
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Answer
This statement is incorrect. Molecule P being described as a tRNA molecule does not relate to the context of the lac operon.
