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668 questions in this collection · Page 12 of 67
Question 111 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
If a double stranded DNA has 100 base pairs, what is its length?
The distance between base pairs is 0.34 nm. If there are 100 base pairs, the length is 100 x 0.34 nm = 34 nm.
Question 112 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
Which RNA carries amino acids to the ribosome?
Transfer RNA (tRNA) is responsible for transporting specific amino acids from the cytoplasmic pool to the ribosome during protein synthesis.
Question 113 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
The termination of transcription in bacteria involves?
In bacteria, transcription termination is facilitated by the Rho factor, which binds to the RNA polymerase and helps release the nascent RNA.
Question 114 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
Expressed Sequence Tags (ESTs) are associated with?
ESTs is a methodology used in the Human Genome Project focused on identifying all the genes that are expressed as RNA (coding sequences).
Question 115 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
Which vector can clone the largest DNA fragment?
Yeast Artificial Chromosomes (YACs) have the highest cloning capacity among common vectors, capable of cloning DNA fragments up to 1000 kb or more, making them useful for genome projects.
Question 116 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
The bulk of the human genome consists of?
A very large portion of the human genome is made up of repetitive sequences (Satellite DNA) which do not code for proteins but have structural and evolutionary roles.
Question 117 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
Which enzyme is used to remove phosphate from the 5-prime end of DNA?
Alkaline Phosphatase is used to remove phosphate groups from the 5-prime end of DNA molecules, often to prevent self-ligation of vectors.
Question 118 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
What is the approximate number of genes in the human genome?
The Human Genome Project estimated that there are approximately 30,000 genes in the human genome, much fewer than originally predicted.
Question 119 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
Which of the following is true for the structure of B-DNA?
B-DNA, the most common form of DNA in cells, forms a right-handed double helix structure.
Question 120 of 668
📘 CLASS XII
Molecular Basis Of Inheritance
The DNA strand that is synthesized away from the replication fork is?
The lagging strand is synthesized discontinuously in the direction away from the replication fork, requiring multiple primers and the formation of Okazaki fragments.