NEET UG BIOLOGY MCQ: MOLECULAR BASIS OF INHERITANCE

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Assertion : A number of different polypeptide
chains can be formed from a single mRNA
strand.

Reason : The mRNA strand has terminator
codons.

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Correct option: B

If both Assertion and Reason are true but Reason
is not the correct explanation of Assertion

Option B is correct because both the assertion and the reason are true, but the reason does not explain the assertion. Different polypeptide chains can be formed from a single mRNA due to alternative splicing and the presence of multiple start codons, not just terminator codons.

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The correct sequence of the first six amino acids in HbA beta globulin peptide is 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?