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Molecular basis of inheritance : NEET MCQ Questions

Are you looking for NEET MCQ Questions on Molecular basis of inheritance? If Yes then you are at right place. Here you will find Molecular basis of inheritance NEET MCQ Questions and Answers, Trivia, Quiz, Interview MCQ & Molecular basis of inheritance Current Affairs for Competitive Exams like Neet exams, around 30% to 40% of Neet questions are asked from given Molecular basis of inheritance Mcqs. as you know Questions and Ansers on Molecular basis of inheritance MCQS is very important for Neet Exam. In this Molecular basis of inheritance NEET section for Neet competition we are covering NEET MCQ Questions on Molecular basis of inheritance

Contents

Question 1 : Histones are

A. Positively charged and basic amino acids

B. Positively charged and acidic proteins

C. Negatively charged and basic proteins

D. Absent in bacteria

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Question 2 : Which non-radioactive isotope was used by Messelson and Stahl in their experiment?

A. P32

B. S35

C. N15

D. None

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Question 3 : Human Genome Project led to the development of

A. Biotechnology

B. Bioinformatics

C. Biosystematics

D. Bioengineering

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Question 4 : In eukaryotes, RNA II facilitates transcription of

A. rRNA

B. mRNA

C. hnRNA

D. tRNA

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Question 5 : The process of RNA splicing shows the dominance of

A. RNA world

B. DNA world

C. Microbial world

D. Protein world

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Question 6 : The gene sequence that codes for proteins are

A. Exons

B. Introns

C. Intervening sequences

D. Control regions

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Question 7 : The primary control of gene expression takes place at the level of

A. Translation

B. Replication

C. Transcription

D. None

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Question 8 : What will the amount of guanine in a DNA if the total amount of adenine and thiamine in the DNA is 45%?

A. 45%

B. 65%

C. 27.5%

D. 22.3%

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Question 9 : A molecule that acts as a genetic material must fulfil the following traits, except

A. It should be structurally and chemically unstable

B. It should have the ability to generate its replica

C. It should facilitate slow changes necessary for evolution.

D. It should be able to express itself in the form of Mendelian characters.

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Question 10 : Spliceosomes are absent in the cells of

A. Plants

B. Animals

C. Bacteria

D. Fungi

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Question 11 : The amino acid coded by 3 codons is

A. Proline

B. Isoleucine

C. Tryptophan

D. Serine

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Question 12 : The eukaryotic replication of DNA is

A. Bidirectional with many origins

B. Unidirectional with many origins

C. Bidirectional with a single origin

D. Unidirectional with a single origin

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Question 13 : Which enzyme is not produced during lactose catabolism by E.coli?

A. 𝜷-galactosidase

B. Lactose Permease

C. Thiogalactoside transacetylase

D. Lactose dehydrogenase

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Question 14 : In lac-operon, which protein is not regulated by the repressor?

A. Galactosidase

B. Lactose Permease

C. Tryptophan

D. Transacetylase

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Question 15 : The anticodon of initiation codon for protein synthesis is

A. UUU

B. AUG

C. UAC

D. CAU

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Question 16 : Select the incorrectly matched pairs

A. Purines – Nitrogenous bases cytosine, thymine and uracil

B. Recombinant DNA – DNA formed by joining the DNA segments from two different sources

C. rRNA – RNA found in ribosomes

D. ATP – The energy-carrying compound in the cell

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Question 17 : Which step does not occur in translation?

A. Replication

B. Termination

C. Elongation

D. Initiation

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Question 18 : Select a ribozyme

A. Peptidyl transferase

B. Helicase

C. Ribonuclease-P

D. Both (a) and (c)

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Question 19 : The proofreading enzyme in DNA replication is

A. Primase

B. DNA Polymerase I

C. Ligase

D. DNA Polymerase II

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Question 20 : Non-sense codons participate in

A. Releasing t-RNA from polynucleotide chain

B. Formation of unspecified amino acids

C. Terminating message of gene-controlled protein synthesis

D. Conversion of sense DNA into non-sense DNA

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Question 21 : The enzyme involved in transcription

A. DNA Polymerase I

B. DNA Polymerase III

C. RNA Polymerase

D. DNA Polymerase II

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Question 22 : Genetic information is transferred from nucleus to cytoplasm through

A. RNA

B. Anticodon

C. DNA

D. Lysosomes

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Question 23 : The primer in DNA replication is

A. Small ribonucleotide polymer

B. Helix destabilizing protein

C. Small deoxyribonucleotide polymer

D. Enzyme joining nucleotides of new strands

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Question 24 : In a transcription unit, the promoter is located towards

A. 5’end of the structural gene

B. 3’end of the structural gene

C. 5’end of the template strand

D. 3’end of the coding strand

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Question 25 : The reason behind the anti-parallel strand of DNA is

A. Hydrogen bond

B. Ionic bond

C. Phosphodiester bond

D. Disulphide bond

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Question 26 : AUG stands for

A. Alanine

B. Methionine

C. N-formyl methionine

D. Glycine

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Question 27 : Hershey and Chases experiment was based on the principle

A. Transformation

B. Translation

C. Transduction

D. Transcription

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Question 28 : What is the nature of the strands of the DNA duplex?

A. Anti-parallel and complementary

B. Identical and complementary

C. Anti=parallel and non-complementary

D. Dissimilar and non-complementary

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