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The transparent non-cellular layer of th...

The transparent non-cellular layer of the ovum is called :

A

Zona pellucida

B

Theca externa

C

Corona radiata

D

Granulosa laver

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ICSE-QUESTION PAPER 2022 TERM 1-MULTIPLE CHOICE QUESTIONS
  1. If the root cells of an angiosperm have 38 chromosomers, then the numb...

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  2. The mein constituent of the intine laryer of the pollen grain is :

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  3. The transparent non-cellular layer of the ovum is called :

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  4. What is difference between Spermiogenesis and Spermiation?

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  5. The technique used to detect the genetic defects in the developoing em...

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  6. Which of the following is a physical contraceptive device ?

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  7. A patient brought to a hospital with myocardial infarction is immediat...

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  8. Which of the following is NOT used as a biocontrol agent for plant di...

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  9. In the Hardy Weinberg equation, the frequency of heterozygous individu...

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  10. Genetic drift operates in a

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  11. Which of the following is not a vestigial orgin of human beings?

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  12. The abbreviation hnRNA stands for

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  13. The abbreviation IUCD stands for :

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  14. Who proposed the recapitulation theory ?

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  15. The X chromosome was discovered by :

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  16. The phase of life cycle of an organism which is characterised by gradu...

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  17. The compatibility of pollen-pistil interaction is determined by .

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  18. If the Fallopian tubes in the human reproductive system get blocked , ...

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  19. Morula is a solid ball of blastomeres

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  20. Which of the following is the most important component of a contracept...

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