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What do the symbols square and circle in a pedigree chart indicate?

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MBD -HARYANA BOARD-PRINCIPAL OF INHERITANCE AND VARIATIONS-EXERCISE
  1. What do the symbols square and circle in a pedigree chart indicate?

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  2. Fill in the blanks with suitable words: Human females are homogametic...

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  3. Fill in the blanks with suitable words: Haemophilia is a ...............

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  4. Fill in the blanks with suitable words: X-chromosome was previously na...

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  5. Fill in the blanks with suitable words: Turner's syndrome is due to .....

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  6. Fill in the blanks with suitable words: Klinefelter's syndrome is due ...

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  7. Fill in the blanks with suitable words: down's sydrome is due to ........

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  8. Fill in the blanks with suitable words: DNA fingerprinting was invente...

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  9. State true or false: Colour blindness is a sex linked disorder

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  10. State true or false: Human males are AA + XY and females are AA + XX.

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  11. State true or false: Haemophilia and colourblindness are Mendilian di...

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  12. State true or false: Klinefelter syndrome and turner syndrome are chr...

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  13. State true or false: In birds female has pairs of dissimilar sex chro...

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  14. State true or false: Human beings normally have 24 pairs of chromosom...

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  15. Coin one word for the following statements: The ancestral history of a...

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  16. Coin one word for the following statements: The occurrence of only one...

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  17. Coin one word for the following statements: Particular segment of DNA ...

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  18. Coin one word for the following statements: Chromosomes other than sex...

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  19. Expand PKU.

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  20. Genic balance theory was proposed by :

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  21. Males are XO and females XX in case of :

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