Chapter No 12 :DNA Organization in Chromosomes (70 MCQ`S)

This file include mcqs on DNA Organization in Chromosomes for NEET exam MDACT exam entry test, Chromosomes MCQ with answers, Chromosomes and DNA MCQs mdcat, Karyotype Multiple choice questions and answers, MCQs of chromosomes and DNA, Structure of chromosomes questions and answers, Important NEET & MDACT MCQs Chromosome Structure with answers key & explanation, Eukaryotic Chromosomes Organization MCQs with Answers & answers keys with explanation for the preparation of public service commission exam

  1. Which of the following individual/individuals may has/have Linear chromosomes
    1. eukaryotes
    2. Viruses
    3. Bacteria
    4. Both a and b
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  2. Which of the following individual/individuals may has/have Linear chromosomes
    1. eukaryotes
    2. Viruses
    3. Cyanobacteria
    4. All of these
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  3. The bacteriophage lambda possesses a ___________DNA molecule prior to infection
    1. Linear double stranded
    2. Circular double stranded
    3. Linear single stranded
    4. Circular sigle stranded
    5. Show Answer
      Answer: A
      Explanation:
      • N/A
  4. The bacteriophage lambda possesses a ___________DNA molecule after infection
    1. Linear double stranded
    2. Circular double stranded
    3. Linear single stranded
    4. Circular sigle stranded
    5. Show Answer
      Answer: B
      Explanation:
      • N/A
  5. DNA binding protein in bacteria
    1. HU
    2. H-NS
    3. H2B
    4. Both a and b
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  6. Supercoiling in DNA was proposed by
    1. Vinograd
    2. Watson and Crick
    3. Chargaff
    4. Franklin
    5. Show Answer
      Answer: A
      Explanation:
      • N/A
  7. The number of turns in DNA helix is called
    1. Helix number
    2. Linking number
    3. Turn number
    4. Logging number
    5. Show Answer
      Answer: B
      Explanation:
      • N/A
  8. The virus SV40 contains 5200 base pairs and 10.4 bases in each turn, what will be the linking number
    1. 400
    2. 300
    3. 500
    4. 600
    5. Show Answer
      Answer: C
      Explanation:
      • N/A
  9. Two identical DNA molecules that differ in linking number are said to be
    1. Stereisomers
    2. Topoisomers
    3. Enantiomers
    4. Diastereomers
    5. Show Answer
      Answer: B
      Explanation:
      • N/A
  10. The topoisomerases were discovered by
    1. Vinograd
    2. Chargaff
    3. Franklin
    4. Martin Gellert
    5. Show Answer
      Answer: D
      Explanation:
      • N/A

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