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NEET UG BIOLOGY MCQ: MOLECULAR BASIS OF INHERITANCE
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Statement-I: The structural genes of Lac operon are transcribed with the availability of Lactose and glucose.
Statement-II: m-RNA of Lac Operon has only one terminating codon.
Statement-II: m-RNA of Lac Operon has only one terminating codon.
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Correct option: B
Both statements are incorrect
Option B (Both statements are incorrect) is correct because the structural genes of the Lac operon are transcribed only when lactose is available and glucose is absent or at low levels, and the mRNA of the Lac Operon has multiple terminating codons, one for each structural gene.
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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
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?