Can You Answer These Biology MCQs?

18 Questions

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Can You Answer These Biology MCQs?

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Questions and Answers
  • 1. 
    A cell at G1 phase that contains 50 ng of DNA, after the end of mitosis each of the daughter cell will be: 
    • A. 

      50 ng

    • B. 

      25 ng 

    • C. 

      100 ng 

    • D. 

      None of these above 

  • 2. 
    When a plant cell that has 100 ng of the DNA at G2 undergoes meiosis, the amount of DNA at prophase is: 
    • A. 

      100 ng, 50 ng 

    • B. 

      50 ng, 25 ng 

    • C. 

      100 ng, 25 ng 

    • D. 

      25 ng,12.5 ng 

  • 3. 
    Chromosomes will align at the equator of the dividing cell during the: 
    • A. 

      Prophase

    • B. 

      Metaphase

    • C. 

      Anaphase

    • D. 

      Telophase 

    • E. 

      Cytokinesis 

  • 4. 
    Chromosomes will migrate towards the poles of a dividing cell during:
    • A. 

      Prophase

    • B. 

      Anaphase 

    • C. 

      Metaphase

    • D. 

      Telophase

  • 5. 
    During_______, homologous chromosomes arrange along their length as pairs in a process called ________ and form what is called __________.
    • A. 

      Prophase ||, crossing over , recombinant chromosomes 

    • B. 

      Prophase | , crossing over, recombinant chromosomes

    • C. 

      Prophase|| , synapsis, recombinant chromosomes

    • D. 

      Prophase ||, synapsis, tetrad 

    • E. 

      Prophase | , synapsis, terrad 

  • 6. 
    During the cell cycle DNA will be replicated in the: 
    • A. 

      G1 phase

    • B. 

      G2 phase 

    • C. 

      S phase 

    • D. 

      G0 phase 

  • 7. 
    Cytokinesis in an animal cells occurs through _______ while in plant cells it occurs through_____
    • A. 

      Cell plant formation, furrowing 

    • B. 

      Furrowing, cell plate formation 

    • C. 

      Fission, cell plate formation 

    • D. 

      Mitosis, furrowing 

  • 8. 
    Homologous chromosomes will be separated during: 
    • A. 

      Anaphase

    • B. 

      Anaphase |

    • C. 

      Anaphase ||

    • D. 

      Metaphase | 

  • 9. 
    Division of the cytoplasm is called? 
    • A. 

      Cytokinesis

    • B. 

      Mitosis 

    • C. 

      Meiosis 

    • D. 

      None of these above 

  • 10. 
    Mitosis should be preceded by DNA duplication?
    • A. 

      True

    • B. 

      False

  • 11. 
    The longest phase of the cell cycle is? 
    • A. 

      Mitotic phase 

    • B. 

      Prophase 

    • C. 

      Interphase 

    • D. 

      Telophase

  • 12. 
    Ensuring that every thing is ready to go for S phase for DNA duplication is? 
    • A. 

      S check point 

    • B. 

      G2 check point 

    • C. 

      G1 check point 

    • D. 

      None 

  • 13. 
    The control point that determined if the cell can go to M phase for division? 
    • A. 

      G1 check point 

    • B. 

      G2 check point 

    • C. 

      S check point 

    • D. 

      None 

  • 14. 
    G0 is part of the cell cycle? 
    • A. 

      True

    • B. 

      False

  • 15. 
    Despiralization happens during which phase? 
    • A. 

      Prophase 

    • B. 

      Metaphase 

    • C. 

      Anaphase 

    • D. 

      Telophase 

  • 16. 
    The chromosomes don't replicate before the second division in mitosis? 
    • A. 

      True

    • B. 

      False

  • 17. 
    Crossing over occurs in: 
    • A. 

      Prophase ||

    • B. 

      Prophase | 

    • C. 

      Anaphase || 

    • D. 

      Anaphase | 

  • 18. 
    During __________ , homologous pair of chromosomes are separated and cells become haploid 
    • A. 

      Meiosis 

    • B. 

      Meiosis | 

    • C. 

      Meiosis || 

    • D. 

      None 

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