Molecular Basis of Inheritance PYQs Set 4 (PDF)

Set 4 of 5 · Questions 91-120 of 143

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Mere Teacher · Previous Year Questions NEET Biology · Molecular Basis of Inheritance · Set 4 (Q91-120)
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91. $Which of the following bond is not related to nucleic acid :$ (1) $H-bond$ (2) $Ester bond$ (3) $Glycosidic bond$ (4) $Peptide bond$ 92. $If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?$ (1) $11$ (2) $33$ (3) $333$ (4) $1$ 93. $Which of the following step is not involved in Southern blot hybridisation?$ (1) $Electrophoresis$ (2) $Autoradiography$ (3) $Hybridisation$ (4) $Mutation$ 94. $Which of the following biomolecules does have a phosphodiester bond?$ (1) $Nucleic acids in a nucleotide$ (2) $Fatty acids in a diglyceride$ (3) $Monosaccharides in a polysaccharide$ (4) $Amino acids in a polypeptide$ 95. $AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?$ (1) $AGGUAUCGCAU$ (2) $UGGTUTCGCAT$ (3) $ACCUAUGCGAU$ (4) $UCCAUAGCGUA$ 96. $The association of histone H_{1} with a nucleosome indicates:$ (1) $DNA replication is occurring.$ (2) $The DNA is condensed into a Chromatin Fibre.$ (3) $The DNA double helix is exposed.$ (4) $Transcription is occurring.$ 97. $The mechanism that causes a gene to move from one linkage group to another is called:$ (1) $Translocation$ (2) $Crossing-over$ (3) $Inversion$ (4) $Duplication$ 98. $Expressed Sequence Tags (ESTs) refers to$ (1) $Certain important expressed genes.$ (2) $All genes that are expressed as RNA.$ (3) $All genes that are expressed as proteins.$ (4) $All genes whether expressed or unexpressed.$ 99. $What will be the sequence of mRNA produced by the following stretch of DNA ? 3'ATGCATGCATGCATG5' TEMPLATE STRAND 5'TACGTACGTACGTAC3' CODING STRAND$ (1) $3'AUGCAUGCAUGCAUG5'$ (2) $5'UACGUACGUACGUAC3'$ (3) $3'UACGUACGUACGUAC5'$ (4) $5'AUGCAUGCAUGCAUG3'$ 100. $Removal of introns and joining of exons in a defined order during transcription is called$ (1) $Looping$ (2) $Inducing$ (3) $Slicing$ (4) $Splicing$ 101. $Unequivocal proof that DNA is the genetic material was first proposed by$ (1) $Wilkins and Franklin$ (2) $Fedrick, Griffith$ (3) $Alfred Hershey and Martha Chase$ (4) $Avery, MacLeod and McCarthy$ 102. $How many different proteins does the ribosome consist of?$ (1) $20$ (2) $80$ (3) $60$ (4) $40$ 103. $Semiconservative replication of DNA was first demonstrated in :-$ (1) $Salmonella typhimurium$ (2) $Drosophila melanogaster$ (3) $Escherichia coli$ (4) $Streptococcus pneumoniae$ 104. $If A and C make 30% and 20% of DNA, respectively, what will be the percentage composition of T and G?$ (1) $T : 20%, G : 30%$ (2) $T : 30%, G : 20%$ (3) $T : 30%, G : 30%$ (4) $T : 20%, G : 20%$ 105. $Which one of the following is not a criterion of genetic material?$ (1) $Should be able to express itself in the form of Mendelian character.$ (2) $Should be able to generate its replica.$ (3) $Should be stable chemically and structurally.$ (4) $Should not provide the scope for changes for evolution$ 106. $The unequivocal proof of DNA as the genetic material came from the studies on a$ (1) $Bacterium$ (2) $Fungus$ (3) $Viroid$ (4) $Bacterial virus$ 107. $What is the role of RNA ploymerase III in the process of transcription in eukaryotes?$ (1) $Transcribes tRNA, 5s rRNA and sn RNA$ (2) $Transcribes precursor of mRNA$ (3) $Transcribes only snRNAs$ (4) $Transcribes rRNAs (28S, 18S and 5.8S)$ 108. $What would be the proportions of light and hybrid density DNA molecule, respectively if Meselson and Stahl's experiment was continued for 60 minutes?$ (1) $25%, 75%$ (2) $75%, 25%$ (3) $100%, 0%$ (4) $50%, 50$ 109. $The experimental proof for semiconservative replication of DNA was first shown in a$ (1) $Fungus$ (2) $Bacterium$ (3) $Plant$ (4) $Virus$ 110. $Haploids are more suitable for mutation studies than the diploids. This is because :-$ (1) $haploids are more abundant in nature than diploids$ (2) $All mutations, whether dominant or recessive are expressed in haploids$ (3) $Haploids are reproductively more stable than diploids$ (4) $Mutagens penetrate in haploids more effectively than in diploids$ 111. $During DNA replication, Okazaki fragmentsare used to elongate:$ (1) $The lagging strand towards replication fork.$ (2) $The leading strand away from replication fork.$ (3) $The lagging strand away from the replication fork.$ (4) $The leading strand towards replication fork.$ 112. $The 3' - 5' phosphodiester linkages inside a polynucleotide chain serve to join$ (1) $One DNA strand with the other DNA strand.$ (2) $One nucleoside with another nucleoside.$ (3) $One nucleotide with another nucleotide.$ (4) $One nitrogenous base with pentose sugar$ 113. $Under which of the following conditions will there be no change in the reading frame of following mRNA? 5'AACAGCGGUGCUAUU3'$ (1) $Insertion of G at 5^{th} position$ (2) $Deletion of G from 5^{th} position$ (3) $Insertion of A and G at 4^{th} and 5^{th} positions respectively$ (4) $Deletion of GGU from 7^{th}, 8^{th} and 9^{th} positions$ 114. $A non-proteinaceous enzyme is :-$ (1) $Ligase$ (2) $Deoxyribonuclease$ (3) $Lysozyme$ (4) $Ribozyme$ 115. $Transformation was discovered by$ (1) $Meselson and Stahl$ (2) $Hershey and Chase$ (3) $Griffith$ (4) $Watson and Crick$ 116. $Polysome is formed by :-$ (1) $A ribosome with several subunits$ (2) $Ribosomes attached to each other in a linear arrangement$ (3) $Several ribosomes attached to a single mRNA$ (4) $Many ribosomes attached to a strand of endoplasmic reticulum$ 117. $Identify the correct statement.$ (1) $RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria.$ (2) $The coding strand in transcription unit is copied to an mRNA.$ (3) $Split gene arrangement is characteristic of prokaryotes.$ (4) $In capping, methyl guanosine triphosphate is added to the 3^{’} end of hnRNA.$ 118. $Satellite DNA is important because it :$ (1) $Codes for enzymes needed for DNA replication$ (2) $Codes for proteins needed in cell cycle$ (3) $Shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children$ (4) $Does not code for proteins and is same in all members of the population$ 119. $The first phase of translation is :$ (1) $Recognition of an anti-codon$ (2) $Binding of mRNA to ribosome$ (3) $Recognition of DNA molecule$ (4) $Aminoacylation of tRNA$ 120. $Select the correct match :$ (1) $Alec Jeffreys - Streptococcus pneumoniae$ (2) $Alfred Hershey and - TMV Martha Chase$ (3) $Matthew Meselson - Pisum sativum and F. Stahl$ (4) $Francois Jacob and - Lac operon Jacques Monod$