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NEET UG BIOLOGY MCQ: MOLECULAR BASIS OF INHERITANCE
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How many amino acids will be coded by the mRNA sequence –
5’CCCUCAUAGUCAUAC3’ if a adenosine residue is inserted after 12th nucleotide?
5’CCCUCAUAGUCAUAC3’ if a adenosine residue is inserted after 12th nucleotide?
View answer and explanation
Correct option: C
2 amino acids
Option C (2 amino acids) is correct because the original sequence codes for 4 amino acids, and the insertion changes the reading frame such that the sequence now codes for 2 amino acids before encountering a stop codon.
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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?
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?