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NEET UG BIOLOGY MCQ: MOLECULAR BASIS OF INHERITANCE
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In sea urchin DNA, which is double stranded 17% of the bases were shown to be cytosine. The percentages of the other three bases expected to be present in this DNA are
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Correct option: B
G – 17%, A – 33%, T – 33%
Option B (G – 17%, A – 33%, T – 33%) is correct because in double-stranded DNA, G=C and A=T. Since Cytosine is 17%, Guanine is also 17%. The remaining percentage is split equally between Adenine and Thymine.
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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?