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Molecular Basis Of Inheritance – Biology GK MCQ

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Post published:July 31, 2023
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Molecular Basis Of Inheritance

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Molecular Basis Of Inheritance – Biology GK MCQ (वंशानुक्रम का आणविक आधार)

Dive into the fascinating realm of Molecular Basis of Inheritance with our comprehensive MCQs page. This meticulously crafted resource presents a diverse array of multiple-choice questions sourced from previous year papers of renowned exams across various sectors, including the prestigious UPSC IAS and more. Whether you’re an aspirant preparing for competitive exams or a curious learner eager to understand the underlying principles of heredity, this page is your gateway to mastering the molecular intricacies of inheritance.

Our curated collection of MCQs covers a wide spectrum of topics within Molecular Basis of Inheritance, encompassing DNA structure and replication, gene expression, genetic mutations, inheritance patterns, and much more. These questions have been handpicked to align with the latest exam patterns and to ensure the highest level of relevance and accuracy.

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Molecular Basis Of Inheritance – Biology GK MCQ – Previous Year Questions

Question:

The specific palindromic sequence which is recognized by EcoRI is ... [ NEET 2021]

A5' - CTTAAG - 3' 3' - GAATTC - 5'
B5' - GGATCC - 3' 3' - CCTAGG - 5'
C5' - GAATTC - 3' 3' - CTTAAG - 5'
D5' - GGAACC - 3' 3' - CCTTGG - 5'

Question:

Purines found both in DNA and RNA are ....[NEET 2019]

A Adenine and thymine
BAdenine and guanine
C Guanine and cytosine
DCytosine and thymine

Question:

Variations caused by mutation, as proposed by Hugo de Vries are .... [ NEET 2019]

Arandom and directional
B random and directionless
C small and directional
D small and directionless

Question:

Expressed Sequence Tags (ESTs) refers to : [NEET 2019]

AGenes expressed as RNA
BPolypeptide expression
C DNA polymorphism
D Novel DNA sequences

Question:

atch the following genes of the Lac operon with their respective products : Select the correct option. [ NEET 2019] (a) i gene (i) β-galactosidase (b) z gene (ii) Permease (c) a gene (iii) Repressor (d) y gene (iv) Transacetylase

Aa → i; b → iii; c → ii; d → iv;
B a → iii; b → i; c → ii; d → iv;
C a → iii; b → i; c → iv; d → ii;
D a → iii; b → iv; c → i; d → ii;

Question:

Under which of the following conditions will there be no change in the reading frame of following mRNA? 5'AACAGCGGUGCUAUU3' [NEET 2019]

AInsertion of G at 5th position
BDeletion of G from 5th position
C Insertion of A and G at 4th and 5th positions respectively
D Deletion of GGU from 7th, 8th and 9th positions

Question:

The experimental proof for semiconservative replication of DNA was first shown in a ... ..[NEET 2018]

A Plant
BBacterium
CFungus
DVirus

Question:

Select the correct match : (1)Matthew Meselson and F. Stahl Pisum sativum (2)Alfred Hershey and Martha Chase TMV (3)Alec Jeffreys Streptococcus pneumoniae (4)Francois Jacob and Jacques Monod Lac operon

A 1st
B 2nd
C3rd
D 4th

Question:

All of the following are part of an operon except ... ..[NEET 2018]

Aan enhancer
B structural genes
Can operator
Da promoter

Question:

According to Hugo de Vries, the mechanism of evolution is ... [NEET 2018]

APhenotypic variations
B Saltation
C Multiple step mutations
DMinor mutations

Question:

The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C …[NEET 2013]

A A-transcription, B-replication, C-James Watson
B A-translation, B-transcription, C-Erevin Chargaff
C A-transcription, B-translation, C-Francis Crick
D A-translation, B-extension, C-Rosalind Franklin

Question:

AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA ? [NEET 2018]

AACCUAUGCGAU
B UGGTUTCGCAT
CAGGUAUCGCAU
D UCCAUAGCGUA

Question:

Name the enzyme that facilitates opening of DNA helix during transcription. [NEET 2020]

ADNA polymerase
B RNA polymerase
C DNA ligase
DDNA helicase

Question:

Identify the wrong statement with regard to Restriction Enzymes. [NEET 2020]

A They are useful in genetic engineering.
B Sticky ends can be joined by using DNA ligases.
CEach restriction enzyme functions by inspecting the length of a DNA sequence.
D They cut the strand of DNA at palindromic sites.

Question:

Which of the following statements is correct?

AAdenine pairs with thymine through three H-bonds
B Adenine does not pair with thymine
C Adenine pairs with thymine through two H bonds
DAdenine pairs with thymine through one Hbond

Question:

If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6 × 109 bp, then the length of the DNA is approximately