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NEET UG BIOLOGY MCQ: MOLECULAR BASIS OF INHERITANCE
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If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
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Correct option: D
33
Option D (33) is correct because the deletion shifts the reading frame, altering all codons from the point of deletion until the end of the mRNA. 998 - 900 = 98 bases. 98/3 = 32.66, rounded up to 33 codons.
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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?