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NEET UG BIOLOGY MCQ: MOLECULAR BASIS OF INHERITANCE
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Assertion (A): Lac operator is present only in lac operon & it interact specifically with lac repressor only.
Reason (R): Each operon has its specific operator & specific repressor.
Reason (R): Each operon has its specific operator & specific repressor.
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Correct option: A
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Option A (Both (A) & (R) are true and the (R) is the correct explanation of the (A)) is correct because the lac operator specifically interacts with the lac repressor, and this specificity is a general feature of operons.
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Assertion: The bacteria and other prokaryotes
show high adaptability to the changing
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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
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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?