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Write the symptoms of haemophilia and si...

Write the symptoms of haemophilia and sickle-cell anaemia in humans. Explain how the Inheritance pattern of the two diseases differs from each other.

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### Step-by-Step Solution: **1. Symptoms of Hemophilia:** - Hemophilia is a blood disorder characterized by the inability of blood to clot properly. - Symptoms include: - Excessive bleeding from cuts or injuries. - Frequent nosebleeds. - Bruising easily. ...
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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-SECTION-D
  1. Explain the causes, inheritance pattern and symptoms of any two Mendel...

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  2. (a) Natural selection operates when nature selects for fitness. Explai...

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  3. Write the symptoms of haemophilia and sickle-cell anaemia in humans. E...

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  4. (a ) Write the Hardy-Weinberg principle. (b) Explain the three diffe...

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  5. (a) Draw a diagrammatic sectional view of a mature anatropous ovule an...

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  6. (a) Draw a labelled schematic diagram of the transverse section of a m...

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  7. Public all over India is very much concerned about the deteriorating a...

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  8. Read the following statement and answer the questions that follows: ...

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  9. a) Arrange the following hormones in sequences of their secretion in a...

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  10. State and explain the "law of independent assortment" in a typical Men...

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  11. a) How do the observations made duirng moth collection in pre- and pos...

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  12. a) What is an age-pyramid? b) Name three representative kinds of age...

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  13. Discuss the role of healthy ecosystem services as a pre-requisite for ...

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  14. Describe in sequence the events that lead to the development of a 3-ce...

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  15. (a) Give a schematic representation showing the events of spermatogene...

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  16. (a) State the law of independent assortment. (b) Using Punnett Squar...

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  17. (a) Why are herbivores considered similar to predators in the ecologic...

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  18. (a) Trace the succession of plants on a dry bare rock. (b) How does ...

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  19. (a ) Draw a labelled L.S. view of an albuminous 'seed'· (b) How are ...

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  20. (a) Write the fate of egg cell and polar nuclei after fertilization.

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