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Zoology - Reproduction in Organisms Three Marks Questions

12th Standard

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Biology

Time : 00:45:00 Hrs
Total Marks : 30
    10 x 3 = 30
  1. The unicellular organisms which reproduce by binary fission are considered immortal. Justify

  2. Why is the offspring formed by asexual reproduction referred as a clone?

  3. Why are the offsprings of oviparous animal at a greater risk as compared to offsprings of viviparous organisms?

  4. Give reasons for the following:
    (a) Some organisms like honey bees are called parthenogenetic animals
    (b) A male honey bee has 16 chromosomes where as its female has 32 chromosomes


  5. (i) Identify the Process
    (ii) Name the Organism

  6. Apolysis favors Taenia solium. How?

  7. Give the definition for (a) Arrhenotoky (b) Thelytoky (c) Amphitoky

  8. What is Incomplete parthenogenesis? Explain with example.

  9. In Vivipary, how the developing embryos are nourished?

  10. How Charles Bonnet and Abraham Trembley contributed to Biological filed?

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