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Mention the site where syngamy occurs in...

Mention the site where syngamy occurs in amphibians and reptiles respectively.

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In amphibians, external fertilisation occurs hence, syngamy occurs in the medium of water. In reptiles, internal fertilization occurs hence, syngamy occurs within the body.
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XII BOARDS PREVIOUS YEAR-XII BOARDS-SECTION-A
  1. What is biopiracy?

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  2. Name and describe any three causes of biodiversity losses.

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  3. Mention the site where syngamy occurs in amphibians and reptiles respe...

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  4. How is snow-blindness caused in humans ?

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  5. Name one autosomal dominant and one autosomal recessive. Mendelian dis...

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  6. How is the action of exonuclease different from that of endonuclease ?

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  7. India has more than 50,000 strains of rice. Mention the level of biodi...

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  8. Mention the information that the health workers derive by measuring BO...

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  9. Name the enzyme involved in the continuous replication of DNA strand. ...

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  10. Offsprings derived by asexual reproduction are called clones. Justify ...

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  11. Write the genotype of (i) an individual who is carrier of sickle cell ...

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  12. Mention a characteristic feature and a function of zoospores in some a...

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  13. A human being suffering from Down's Syndrome shows trisomy of 21^(st) ...

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  14. Pea flowers produce assured seed sets. Give a reason.

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  15. British geneticist R.C. Punnett developed a graphical representation o...

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  16. State the two principal outcomes of the experiments conducted by Louis...

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  17. Name the layer of the atmosphere that is associated with 'good ozone'....

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  18. What are 'flocs', formed during secondary treatment of sewage ? OR ...

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  19. At what stage does the meiosis occur in an organism exhibiting haploid...

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  20. Mention two objectives of-setting up GEAC by our Government.

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