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Molecular Basis of Inheritance MCQs
Class XII Biology
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NCERT Based
•
NEET Practice
📘 Concept Based
📝 Exam Level
🤖 AI Explanations
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668 questions in this chapter
Question 381 of 668
📘 CLASS XII
The region of chromatin which is loosely packed and transcriptionally active is _______
Euchromatin is active.
Question 382 of 668
📘 CLASS XII
The strand of DNA which is transcribed is called the _______ strand.
The template strand is transcribed.
Question 383 of 668
📘 CLASS XII
The coding strand has _______ polarity.
The coding strand runs 5' to 3'.
Question 384 of 668
📘 CLASS XII
In prokaryotes, the ribosome binding site on mRNA is called _______ sequence.
The Shine-Dalgarno sequence is the ribosome binding site in prokaryotes.
Question 385 of 668
📘 CLASS XII
In the presence of lactose, the repressor is inactivated by the _______
Lactose (inducer) inactivates the repressor.
Question 386 of 668
📘 CLASS XII
The enzyme that catalyzes peptide bond formation is _______
The ribosome (23S rRNA) acts as peptidyl transferase.
Question 387 of 668
📘 CLASS XII
In eukaryotes, the primary transcript is called _______
The primary transcript is hnRNA.
Question 388 of 668
📘 CLASS XII
The cap added to the 5' end of hnRNA helps in binding of _______
The cap recruits the ribosome.
Question 389 of 668
📘 CLASS XII
During translation, the _______ site on the ribosome accepts the incoming aminoacyl-tRNA.
The A (Aminoacyl) site accepts new tRNAs.
Question 390 of 668
📘 CLASS XII
The peptidyl-tRNA is present at the _______ site of the ribosome.
The P (Peptidyl) site holds the growing chain.
