Molecular Basis of Inheritance: NEET MCQs Test – 6 18


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Molecular Basis of Inheritance NEET Questions (MCQ) | Molecular Basis of Inheritance Class 12 NEET Questions | Online Test 06

Molecular Basis of Inheritance: MCQs Quiz - 6

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Question 1
PCR and Restriction Fragment Length Polymorphism are the methods for
A
DNA sequencing
B
Genetic fingerprinting
C
Study of enzymes
D
Genetic transformation
Question 2
Removal of RNA polymerase III from nucleoplasm will affect the synthesis of
A
mRNA
B
rRNA
C
tRNA
D
hnRNA
Question 3
Removal of introns and joining of exons in a defined order during transcription is called
A
Slicing
B
Splicing
C
Looping
D
Inducing
Question 4
Which one of the following is not a part of a transcription unit in DNA?
A
A promoter
B
The structural gene
C
The inducer
D
A terminator
Question 5
A single strand of nucleic acid tagged with a radioactive molecule is called
A
Plasmid
B
Probe
C
Vector
D
Selectable marker
Question 6
If one strand of DNA has the nitrogenous base sequence as ATCTG, what would be the complementary RNA strand sequence?
A
AACTG
B
ATCGU
C
TTAGU
D
UAGAC
Question 7
Degeneracy of genetic code is due to
A
functional 61 codons and 20 amino acids
B
functional 64 codons and 20 amino acids
C
functional 20 codons and 20 amino acids
D
functional 20 codons and 61 amino acids
Question 8
Why are UGA, UAG and UAA called termination codons?
A
They do not specify any amino acid
B
They are present at the beginning of mRNA
C
They terminate anticodons
D
They indicate initiation of translation
Question 9
During replication of DNA,Okazakifragments are formed in the direction of :
A
3′→5′
B
5′→3′
C
5′→5′
D
3′→3′
Question 10
Link together two pieces of DNA
A
Link together two pieces of DNA
B
Cut DNA at specific locations
C
Restrict elongation of DNA
D
Restrict DNA replication
Question 11
In the DNA molecule:
A
The proportion of Adenine in relation to thymine varies with the organism
B
There are two strands which run parallel in the 5′ → 3′ direction
C
There are two strands which run antiparallel-one in 5′ → 3′ direction and other in 3′ → 5′
D
The total amount of purine nucleotides and pyrimidine nucleotides is not always equal
Question 12
What would happen if in a gene encoding a polypeptide of 50 amino acids, 25th codon (UAU) is mutated to UAA
A
A polypeptide of 24 amino acids will be formed
B
A polypeptide of 25 amino acids will be formed
C
A polypeptide of 49 amino acids will be formed
D
Two polypeptides of 24 and 25 amino acids will be formed
Question 13
Number of nitrogenous bases in a Codon is
A
3
B
2
C
1
D
5
Question 14
A gene of operon which synthesizes a repressor protein is ______.
A
Promoter gene
B
Regulator gene
C
Operator gene
D
Structural gene
Question 15

The sequence of events mentioned below are symbolized by alphabets. Choose the correct answer where the alphabets are matched with the processes. <.p>

RNA —(A)—> DNA —(B)—> DNA —(C)—> mRNA —(D)—> Polypeptide

A
A = Replication, B = Transformation, C = Transcription, D = Translation
B
A = Reverse transcription, B = Translation, C = Transcription, D = Replication
C
A = Replication, B = Transcription, C = Translation, D = Transduction
D
A = Reverse transcription, B = Replication, C = Transcription, D = Translation
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18 thoughts on “Molecular Basis of Inheritance: NEET MCQs Test – 6

  • Ehsan Bilal Raza

    I could not understand the question no. 12,,,,,
    Can anybody explain it for me????plz

  • himanshupathak

    GELI is doing a fantastic work by providing such level questions to the students for FREE….. This is very useful not only to check on how strong our boards is but also for cets and pmts…….

    good work….

  • BHAGYASHRI BORKAR

    These que. are highly RECOMMENDED for CET! thank you!