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NEET UG BIOLOGY MCQ: MOLECULAR BASIS OF INHERITANCE
1
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Understanding
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Assertion (A): The gene I codes for the repressor of the lac operon.
Reason (R): The y-gene codes for permease, which increases permeability of the cell to -galactosidase.
Reason (R): The y-gene codes for permease, which increases permeability of the cell to -galactosidase.
View answer and explanation
Correct option: C
(A) is true but (R) is false
Option C ((A) is true but (R) is false) is correct because the gene I codes for the repressor, but the y-gene codes for permease, which increases permeability of the cell to -galactosidase, not -galactosidase itself.
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Assertion: The bacteria and other prokaryotes
show high adaptability to the changing
environment.
Reason: Member of kingdom Monera are
efficient in regulating gene expression. Which of the following is not true for DNA polymerase? Dystrophin gene consists of Read the following four statements (i-iv).
i. In transcription, adenosine pairs with uracil.
ii. Regulation of lac operon by repressor is referred to as positive regulation
iii. The human genome has approximately 30,000 genes
iv. Haemophilia is a sex-linked recessive disease
How many of the above statements are correct? Reactive group of RNA is?
show high adaptability to the changing
environment.
Reason: Member of kingdom Monera are
efficient in regulating gene expression. Which of the following is not true for DNA polymerase? Dystrophin gene consists of Read the following four statements (i-iv).
i. In transcription, adenosine pairs with uracil.
ii. Regulation of lac operon by repressor is referred to as positive regulation
iii. The human genome has approximately 30,000 genes
iv. Haemophilia is a sex-linked recessive disease
How many of the above statements are correct? Reactive group of RNA is?