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Write down the names of two 'X' chromoso...

Write down the names of two 'X' chromosomal disease. Show with a checker board if it is possible that the existance of a normal brother beside one colour blind brother and sister.

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Show with a checker board the possibility of haemophilia in son and daughter if a normal man marry a normal but carrier female. Why colour blindness is found largely in male?

UNITED BOOK HOUSE-ETORE SANTAL SIKSHANIKETA PAPER-EXERCISE
  1. N2 cycle is affected by human activity-mention two events.

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  2. Explain bio-mnagnification using word diagram.

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  3. Imagine the problems can happen in future due to the degadation of nat...

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  4. Local biodiversity is affected due to the infiltration of exotic speci...

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  5. Draw a neat diagram of the cross section of human eyeball and lebel of...

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  6. Draw a neat diagram of human eukaryotic chromosome and lebel of the fo...

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  7. Create a chart where the meiosis cell division takes place in organism...

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  8. Increase of water hyacinth is a dangerous situation for ecosystem . ex...

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  9. In which case the phenotype and genotype ratio of F2 generation will b...

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  10. Write down the names of two 'X' chromosomal disease. Show with a check...

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  11. Explain how long necked giraffe was originated according to Darwin.

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  12. Write the adaptive features of cactus.

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  13. Evaluate what kinds of environmetanl issues can happen by seeing follo...

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  14. Evaluate what kinds of environmetanl issues can happen by seeing follo...

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  15. How the take off and landing of aeroplance causes air-pollution? Evalu...

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  16. Give examples of plants with self and cross pollination

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  17. Explain the characteristics of national park. Identify the sources of ...

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  18. Explain the characteritics of the followings of national park- Natur...

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  19. Explain how overexploitation of exotic species effect biodiversity?

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  20. Name the enzyme involved in biological nitrogen fixation.

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