Class XII · Biology practice
Molecular Basis of Inheritance MCQs
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668 questions in this collection · Page 50 of 67
Question 491 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
In protein synthesis, the polymerization of amino acids involves three steps. Which is not one of them?
Transcription creates mRNA, it is not a step of translation (polymerization of AA).
Question 492 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
During translation, the _______ site holds the tRNA carrying the growing polypeptide chain.
P site holds the polypeptide.
Question 493 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
An mRNA molecule is produced by _______
mRNA is produced by transcription.
Question 494 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
_______ refers to the removal of introns and joining of exons.
Splicing removes introns.
Question 495 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
A sequence of three nucleotides in mRNA that codes for an amino acid is called a _______
A triplet in mRNA is a codon.
Question 496 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
The molecule that carries amino acids to the ribosome is _______
tRNA carries amino acids.
Question 497 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
Synthesis of a polypeptide from an mRNA template is called _______
mRNA to protein is translation.
Question 498 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
The genetic material of HIV is _______
HIV is a retrovirus with ssRNA.
Question 499 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
In DNA, the complementary base of Adenine is _______
A pairs with T in DNA.
Question 500 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
The bond between the phosphate group and the sugar in a nucleotide is _______
Phosphate to sugar is phosphoester.
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