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NEET UG BIOLOGY MCQ: MOLECULAR BASIS OF INHERITANCE
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In a double helix of DNA molecule of 10 coils, if there are 30 adenine nitrogen bases, what is the number of guanine nitrogen bases?
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Correct option: C
70
Option C (70) is correct because in DNA, adenine pairs with thymine and guanine pairs with cytosine; the total number of A-T pairs equals the total number of G-C pairs.
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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?