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TYB Sc. Paper II Cell and Molecular Biology, Question Bank 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank Dr. Kirti M. Nitnaware Assistant Professor Department of Botany Hutatma Rajguru Mahavidyalaya, Rajgurunagar * Required 1. How many carbon atoms are there in deoxyribose sugar * Mark only one oval. 5 6 12 4 2. An example for a purine base in RNA is * Mark only one oval. Thyamine Adenine Uracil cytosine https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 1/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 3. A nitrogen base combined with pentose sugar is called * Mark only one oval. nucleoside nucleotide polypeptide polynucleotide 4. which of the following is left handed DNA Mark only one oval. A-DNA B-DNA C-DNA Z-DNA 5. Which is metabolically stable form of DNA * Mark only one oval. A-DNA B-DNA C-DNA Z-DNA https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 2/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 6. Formation of new DNA molecules from the parent DNA which are exactly similar to its replica is called * Mark only one oval. transcription replication translation mutation 7. DNA replication takes place during * Mark only one oval. meiosis mitosis interphase between two mitotic cycle pachytene and diplotene of meiosis 8. In a DNA molecules 680 bases are present, total number of cytosine is 27. Then what will be the composition of other three bases * Mark only one oval. A=213, T=213, G=127 A=127, T=213, G=213 A=213, T=127, G=213 A=127, T=127, G=127 https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 3/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 9. The primer in DNA replication is * Mark only one oval. small deoxyribonucleotide polymer small ribonucleotide polymer helix destabilizing protein topoisomerase 10. The enzymes responsible for joining the okazaki fragments are Mark only one oval. DNA polymerase I DNA polymerase II DNA ligase topoisomerase 11. In proof reading during DNA replication * Mark only one oval. wrong nucleotides are taken out wrong nucleotides are removed and correct one is inserted wrong nucleotides are inserted mutations are prevented https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 4/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 12. DNA replication is * Mark only one oval. conservative and discontinuous semiconservative and semidiscontinuous semiconservative and discontinuous conservative 13. Nucleotide arrangements in DNA can be seen by * Mark only one oval. X-ray crystallography electron microscopy ultra centrifuge light microscopy 14. Circular DNA present in * Mark only one oval. ER and ribosomes ribosomes and chloroplast mitochondria and chloroplast ribosomes and mitochondria https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 5/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 15. which of the following is true according to Chargaff's rule * Mark only one oval. A+G=T+C A=C G=T A+T/C+G=1 16. Isotopes used in proving semiconservative replication DNA by Messelson and Sthal were * Mark only one oval. 14N,14C 14C,31P 14N,15N 14N,31P 17. During replication DNA gyrase takes part in Mark only one oval. separation of DNA strand in eukaryotes separation of DNA strand in prokaryotes synthesis of primer in eukaryotes synthesis of primer in prokaryotes https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 6/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 18. The complete replication apparatus moving along the DNA molecule at a replication fork is called Mark only one oval. polysome replisome replicon origin 19. An example of base analog that repair with adenine is * Mark only one oval. ethidium bromide methyl methane sulfonate ethylnitrosourea 5-bromo uracil 20. monocistronic mRNA are found in Mark only one oval. prokaryotes eukaryotes virus E. coli https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 7/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 21. The bright colours of ripe fruits is due to * Mark only one oval. Chromoplasts Chloroplasts Amyloplasts Leucoplasts 22. Factory for synthesis of sugars in autotrophic eukaryotes * Mark only one oval. Mitochondria Chloroplast Ribosome Endoplasmic reticulum 23. Stroma is the ground material of which of these Mark only one oval. Ribosomes Lysosomes Mitochondria Chloroplasts https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 8/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 24. All are colorless plastids except Mark only one oval. Elaioplst Amyloplast Proteinoplast rhodoplast 25. which one of the following cell organelles is called "protein factories" of cells Mark only one oval. Mitochondria Ribosomes Endoplasmic reticulum Lysosomes 26. The smaller subunit of ribosome in eukaryotes is Mark only one oval. 30s 60s 40s 80s https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 9/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 27. For the union of two subunit of the ribosomes, which ion is needed Mark only one oval. Mg2+ Ca2++ Mn2+ Fe2+ 28. The enzyme which help in the formation of peptide bond is Mark only one oval. translocase peptidyl transferase DNA polymerase transaminase 29. cristae in the mitochondria serve as site for Mark only one oval. oxidation reduction reaction flavoproteins are phosphorylated protein synthesis none of the above https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 10/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 30. Inner membrane of mitochondria is rich in Mark only one oval. phosphatidylserine phosphatidylinositol phosphatidylcholine cardiolipin 31. ATP is synthesized in mitochondria by Mark only one oval. Glycolysis Gluconeogenesis Kreb cycle Glycogenolysis 32. Plant cell wall is made up of Mark only one oval. cellulose, hemicellulose and pectin cellulose and chitin cellulose only cellulose, hemicellulose and chitin https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 11/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 33. Plasma membrane is made up of Mark only one oval. A protein, a lipid and a cellulose layer Bimolecular lipid layer surrounded by protein layers A protein layer between two lipid layers A lipid layer between two protein layers 34. Which of the following cell organelles regulates the entry and exit of molecules to and from the cell? Mark only one oval. Lysosomes Golgi bodies Cell membrane Mitochondria 35. Which of the following cell organelles is called a suicidal bag? Mark only one oval. Lysosomes Golgi bodies Cell membrane mitochondria https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 12/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 36. Which of the following is a single membrane-bound organelle? Mark only one oval. Vacuole Golgi Apparatus Endoplasmic Reticulum All of the above 37. Which of the following enzymes are used as a marker for the lysosomes? Mark only one oval. Phospholipase Acid phosphatase Pyruvate dehydrogenase Succinate dehydrogenase 38. Which of the following are the functions of lysosomes? Mark only one oval. Autolysis Autophagy Digestion All of the above https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 13/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 39. The main function of nucleolus is Mark only one oval. Protein synthesis ATP production DNA synthesis rRNA synthesis 40. Which of the following is not true for chromatin? Mark only one oval. Organized structure of DNA and protein These are highly condensed DNA It is found in the nucleus It contains a single dsDNA 41. Number of annular unit in nuclear membranes are Mark only one oval. 4 6 8 10 https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 14/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 42. Chromosomes found in the salivary gland of Drosophila is___________. Mark only one oval. Polytene Lampbrush A chromosome B chromosome 43. Lampbrush chromosomes occur in___________. Mark only one oval. Oocytes Cancer cells Lymph glands Salivary glands 44. A chromosome with sub-terminal centromere is___________. Mark only one oval. Acrocentric Acentric Metacentric Telocentric https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 15/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 45. Puffs or balbiani rings in the salivary gland chromosome are the sites of___________. Mark only one oval. Protein synthesis RNA synthesis DNA replication DNA duplication 46. The diagrammatic representation of karyotype (morphological representation of chromosomes) of a species is known as Mark only one oval. Cladogram Ecogram karyotype Idiogram 47. The point at which polytene chromosomes appear to be attached together is known as Mark only one oval. chromocenter chromomere centromere centriole https://docs.google.com/forms/d/1F46Bnlesl6d82zw-65wDi2Qw3sUEIN2L4kDlX_ntEqk/edit 16/17 12/29/2020 T.Y. B. Sc. Paper II Cell and Molecular Biology, Question Bank 48. In which typical stage are Lampbrush chromosomes observed? Mark only one oval. mitotic anaphase mitotic prophase mitotic metaphase meiotic prophase 49. which cell organelle occupy 80% of the total volume of cell Mark only one oval. Chloroplast vacuole mitochondria nucleus 50. Solution of the vacuole is called Mark only one oval. cell sap solution solute protoplasm This content is neither created nor endorsed by Google.
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