Molecular Basis of Inheritance NEET Questions (MCQ) | Molecular Basis of Inheritance Class 12 NEET Questions | Online Test 01
Molecular Basis of Inheritance: MCQs Quiz - 1
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Question 1 |
DNA is made of two chains that twist about one another in the shape of a _______.
Broken ladder | |
Straight ladder | |
Straight spiral | |
Double helix |
Question 2 |
Satellite DNA is useful tool in
Genetic engineering | |
Organ transplantation | |
Sex determination | |
Forensic science |
Question 3 |
Enzymes called ______ add complementary nucleotides, floating inside the nucleus.
DNA polymerase | |
DNA synthetase | |
Lipoprotein lipase | |
None of these |
Question 4 |
If the total amount of adenine and thymine in a double-stranded DNA is 45%, the amount of guanine in this DNA will be
22.5% | |
27.5% | |
45% | |
55% |
Question 5 |
Repressor proteins are coded for by ______ genes.
Structural | |
Operator | |
Promoter | |
Regulator |
Question 6 |
The one aspect which is not a salient feature of genetic code, is its being
Specific | |
Degenerate | |
Ambiguous | |
Universal |
Question 7 |
RNA molecules that act as enzymes are called ribozymes.
Polymerase | |
Ribozymes | |
Transcriptase | |
Both (A) and (B) |
Question 8 |
In history of biology, human genome project led to the development of?
Bioinformatics | |
Biosystematics | |
Biotechnology | |
Biomonitoring |
Question 9 |
RNA polymerase is only capable of catalyzing the process of ______.
Termination | |
Elongation | |
Initiation | |
All of the above |
Question 10 |
The organelles in the cell where protein synthesis occurs are ______.
Ribosomes | |
Endoplasmic reticulum | |
Nucleus | |
mRNA |
Question 11 |
HIV is classified as a retrovirus because its genetic information is carried in
DNA instead of RNA | |
DNA | |
RNA instead of DNA | |
Protein coat |
Question 12 |
The primary control of gene expression takes place at the level of
Translation | |
Transcription | |
DNA-replication | |
None of the above |
Question 13 |
Okazaki is known for his contribution to the understanding of
Transcription | |
Translation | |
DNA replication | |
Mutation |
Question 14 |
What is not true for genetic code?
It is unambiguous | |
A codon in mRNA is read in a non-contiguous fashion | |
It is nearly universal | |
It is degenerate |
Question 15 |
DNA sequence that code for protein are known as
Introns | |
Exons | |
Control regions | |
Intervening sequences |
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If the total amount of adenine and thymine in a double-stranded DNA is 45%, the amount of guanine in this DNA will be
22.5%
27.5%
45%
55%
for this question the ans is given 27.5 % and not 22.5% pls explain how…..
65 remains total of cytosine and gyoinin so 65 divided by 2
according to chargaffs rule .
%Adenine=%thymine
%guanine=%cytosine for double stranded dna
so total A+T +G + C =100%
Here A+T =45
Then G+C=55
As G=C
% G = 55/2 =27.5%
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