CBSE 2024 · Region 5 · Set 1 · Q10 · 1 mark
Match the following genes of the lac operon listed in column 'A' with their respective products listed in column 'B' : A B Gene Products a. 'i' gene (i) $\displaystyle \beta$-galactosidase b. 'z' gene (ii) lac permease c. 'a' gene (iii) repressor d. 'y' gene (iv) transacetylase
Select the correct option :
| A | B | ||
| Gene | Products | ||
| a. | 'i' gene | (i) | $\displaystyle \beta$-galactosidase |
| b. | 'z' gene | (ii) | lac permease |
| c. | 'a' gene | (iii) | repressor |
| d. | 'y' gene | (iv) | transacetylase |
Official answer
From CBSE’s own marking scheme for this paper.
(C)
a - (iii), b - (i), c - (iv), d - (ii)
Molecular Basis of InheritanceTranscriptionRemembermcqeasy
More from Molecular Basis of Inheritance
- Explain how the addition of lactose in the medium regulates the switching on of the lac operon in bacteria.2025 · asked 3×
- The type of bond represented by the dotted line '-----' in a schematic polynucleotide chain is:2024 · asked 3×
- Which of the options has correct identification of 'P', 'Q' and 'R' in the illustration of 'Central Dogma'…2024 · asked 3×
- Study the diagram given below and answer the questions that follows: Identify the structure shown in the…2025 · asked 3×
- What is a genetic code? Why did scientists feel the need to propose a genetic code? Genetic code is said to…2026 · asked 3×
- Assertion: Primary transcripts in eukaryotes are subjected to splicing to remove the introns. Reason (R):…2024 · asked 3×
- Given below is a heterogeneous RNA formed during Eukaryotic transcription: How many introns and exons…2025 · asked 3×
- Consider the given data of a hypothetical small portion of mRNA that codes for a functional polypeptide chain…2024 · asked 3×
CBSE Class 12 Biology past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.