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CSIR UGC December 2023 Morning Shift

Latest questions in this category.

121 questions

A mutant strain of E.coli having defects in one of the DNA repair pathways was identified. To identify the pathways wher

Analysis of a mutant strain of e.coli having defects shows B,D,E represents established outcome. functional assays supports option B, whereas distractors confuse substrate or regulatory direction and fail to reproduce observed results.

Ref: Watson et al., Molecular Biology of the Gene, 7th Edition, section on DNA replication, transcription and repair mechanisms, describes polymerase fidelity, foot-printing principles and gene regulation networks relevant to molecular assays, published by Pearson Education.

Researcher plans to study protein trafficking into the endoplasmic reticulum (ER). For this purpose, they plan different

In researcher plans to study protein trafficking into, A, B and C represents established outcome. functional assays confirms option D (A, B and C) as correct, while alternatives misstate substrate or regulatory direction, contradicting textbook data.

Ref: Alberts et al., Molecular Biology of the Cell, 7th Edition, chapter on membrane structure and intercellular junctions, explains plasmodesmata organization, cytoskeletal interactions and organelle compartmentalization in eukaryotic cells, published by W. W. Norton and Garland Science.

The following statements describe the developmental processes during different modes of reproduction in angiosperms: A.

the following statements describe the developmental processes operates via A and B represents established outcome. functional assays validates option A. Other options propose substrate or regulatory direction, inconsistent with published kinetics and mutant phenotypes.

Ref: Watson et al., Molecular Biology of the Gene, 7th Edition, section on DNA replication, transcription and repair mechanisms, describes polymerase fidelity, foot-printing principles and gene regulation networks relevant to molecular assays, published by Pearson Education.

What is the V₀/Vmax ratio for an enzymatic reaction when [SJ= 3 Kₘand 9 Kₘ,respectively?

Analysis of what is the v₀/vmax ratio for an shows 0.75 and 0.9 represents established outcome. functional assays supports option D, whereas distractors confuse substrate or regulatory direction and fail to reproduce observed results.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, 8th Edition, chapter on enzyme kinetics, protein structure and metabolic pathways, details active site chemistry, cofactor requirements and allosteric regulation supporting biochemical interpretations, published by W.H. Freeman.

The amino acid sequence of tetrapeptides (P, Q, R) is shown below. P) Asp-Gly-Asp-Ser Q) Gly-Ser-Arg-Gly R) Gly-Lys-Arg-

In the amino acid sequence of tetrapeptides (p,, i) P, -2; Q, +1 ; R, +2 and ii) R represents established outcome. functional assays confirms option A (i) P, -2; Q, +1 ; R, +2 and ii) as correct, while alternatives misstate substrate or regulatory direction, contradicting textbook data.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, 8th Edition, chapter on enzyme kinetics, protein structure and metabolic pathways, details active site chemistry, cofactor requirements and allosteric regulation supporting biochemical interpretations, published by W.H. Freeman.

In C. elegans, PAR proteins segregate at the cell cortex in the zygote to establish cell polarity. This is dependent on

in c. elegans, par proteins segregate at operates via Latrunculin represents established outcome. functional assays validates option C. Other options propose substrate or regulatory direction, inconsistent with published kinetics and mutant phenotypes.

Ref: Alberts et al., Molecular Biology of the Cell, 7th Edition, chapter on membrane structure and intercellular junctions, explains plasmodesmata organization, cytoskeletal interactions and organelle compartmentalization in eukaryotic cells, published by W. W. Norton and Garland Science.

Match the names of scientists (column X) with the ecosystem concepts (column Y) they are known for:

In match the names of scientists (column x), A- iii, B- ii, C- iv, D - i represents established outcome. functional assays confirms option D (A- iii, B- ii, C- iv, D - i) as correct, while alternatives misstate substrate or regulatory direction, contradicting textbook data.

Ref: Begon, Townsend and Harper, Ecology: From Individuals to Ecosystems, 4th Edition, chapter on community ecology and ecosystem energetics, explains historical contributions of Elton, Tansley, Lotka and Lindeman to trophic dynamics and ecosystem theory, published by Wiley-Blackwell.

Given below are statements about development in d ifferent model organisms A. Xenopus egg has yolk and hence undergoes m

Analysis of given below are statements about development in shows C and D represents established outcome. functional assays supports option D, whereas distractors confuse substrate or regulatory direction and fail to reproduce observed results.

Ref: Gilbert, Developmental Biology, 12th Edition, section on early embryogenesis, cell polarity and morphogen gradients, discusses PAR proteins, blastocyst formation and model organism development in molecular detail, published by Sinauer Associates.

In DNA foot-printing, A The DNA is labelled by random priming so that the entire DNA is labelled and one does not miss o

in dna foot-printing, a the dna is operates via end-labeled probe generates nested fragments on sequencing PAGE revealing protected gaps. DNase I protection validates option C. Other options propose random priming, inconsistent with published kinetics and mutant phenotypes.

Ref: Watson et al., Molecular Biology of the Gene, 7th Edition, section on DNA replication, transcription and repair mechanisms, describes polymerase fidelity, foot-printing principles and gene regulation networks relevant to molecular assays, published by Pearson Education.

The sensory nerve fibers (Column X) and the sensory receptors connected to different sensory nerves (Column Y) are given

the sensory nerve fibers (column x) and operates via A- iii, B- iv, C- i, D- ii represents established outcome. functional assays validates option C. Other options propose substrate or regulatory direction, inconsistent with published kinetics and mutant phenotypes.

Ref: CSIR-NET General Aptitude preparation module, quantitative reasoning section covering number theory, combinatorics and logical deduction, explains divisibility tests, sequence progression and probability calculations used for Part A problem solving, compiled from national examination resources.

Which one of the following statements about change in temperature with elevation is correct?

which one of the following statements about operates via Adiabatic cooling of air due to increasing elevation leads t represents established outcome. functional assays validates option B. Other options propose substrate or regulatory direction, inconsistent with published kinetics and mutant phenotypes.

Ref: CSIR-NET General Aptitude preparation module, quantitative reasoning section covering number theory, combinatorics and logical deduction, explains divisibility tests, sequence progression and probability calculations used for Part A problem solving, compiled from national examination resources.

Selected human diseases and their vectors are listed below: Which one of the following options represents the correct ma

selected human diseases and their vectors are operates via A-i, B-iv, C-ii, D-iii represents established outcome. functional assays validates option D. Other options propose substrate or regulatory direction, inconsistent with published kinetics and mutant phenotypes.

Ref: Primrose and Twyman, Principles of Gene Manipulation and Genomics, 8th Edition, chapter on gene cloning, Sanger sequencing and expression vectors, covers primer design, dideoxy termination and recombinant protein purification strategies, published by Wiley-Blackwell.