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  • Question
  • During meiosis crossing over takes place at


  • Options
  • A. zygotene stage
  • B. diplotene stage
  • C. diakinesis stage
  • D. pachytene stage

  • Correct Answer
  • pachytene stage 


  • Plant Genetics problems


    Search Results


    • 1. What is the approximate size (in kb) of the melon mitochondrial genome?

    • Options
    • A. 600 kilobase
    • B. 1200 kilobase
    • C. 2400 kilobase
    • D. 3000 kilobase
    • Discuss
    • 2. An organism that relies exclusively on pre-synthesized food molecules is

    • Options
    • A. autotrophic
    • B. photosynthetic
    • C. prokaryotic
    • D. heterotrophic
    • Discuss
    • 3. Plants absorb nitrates from soil and convert them into

    • Options
    • A. urea
    • B. ammonia
    • C. nitrogen
    • D. none of these
    • Discuss
    • 4. A group of about 300 chlorophyll molecule acting together to trap photons and transfer energy to the pigment molecule at the reaction center may be called as

    • Options
    • A. harvesting unit
    • B. reaction center
    • C. photosynthetic unit
    • D. chloromass
    • Discuss
    • 5. What type of long chain alcohol is esterified to plant chlorophyll molecules?

    • Options
    • A. Dolichol
    • B. Farnesol
    • C. Phytol
    • D. None of these
    • Discuss
    • 6. Which of the following transposable elements are not found in plants?

    • Options
    • A. Ac
    • B. Tam3
    • C. L1
    • D. All are found
    • Discuss
    • 7. When do kinetochore microtubules pull chromosomes towards opposite spindle poles?

    • Options
    • A. In anaphase A
    • B. In anaphase B
    • C. In metaphase
    • D. In telophase
    • Discuss
    • 8. In the meiotic cell divison in daughter cells are produced by two successive division in which

    • Options
    • A. first division is equational, second is reductional
    • B. first division is reductional and second is equational
    • C. both divisions are reductional
    • D. both divisions are equational
    • Discuss
    • 9. The homologous chromosomes follow the process of synopsis in the

    • Options
    • A. leptotene
    • B. zygotene
    • C. pachytene
    • D. diplotene
    • Discuss
    • 10. In case of incomplete dominance, the phenotypic ratio of a monohybrid cross will be

    • Options
    • A. 1:2:1
    • B. 3:1:1
    • C. 1:3:1
    • D. 1:1:2
    • Discuss


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