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The composition male sex chromosomes are...

The composition male sex chromosomes are present in male and fKHOale?

A

XX

B

XYX

C

YXY

D

XY

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Sex chromosomes of male are :

Mention the total number of chromosomes along with the sex chromosomes that are present in a human female and a human male. Explain how in sexually producing organisms the number of chromosomes in the progeny remains the same as that of the parents.

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MBD -HARYANA BOARD-HEREDITY AND EVOLUTION-EXAMPLE
  1. What does biogenesis mean?

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  2. What is locus ?

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  3. In the diagram what is the sex of (a) and (b)

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  4. Branch of biology dealing with heredity and variation is

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  5. The factors which represent the constrasting pairs of characters are c...

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  6. Two allelic genes are located on .

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  7. Mendel's law of segregation is based on separation of alleles during

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  8. The ratio of phenotype in F2 generation of a dihybrid cross is:

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  9. The composition male sex chromosomes are present in male and fKHOale?

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  10. Who postulated the natural selection as the basis of evolution?

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  11. How many pairs of chromosomes are present in male and fKHOale?

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  12. How many years bach human has started to grow the wild cabbage as food...

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  13. How the age of fossils is determined

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  14. Fill in the blanks: ……are units of heredity

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  15. Fill in the blanks: There are…..pairs of chromosomes in human.

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  16. Fill in the blanks: Site of gene on a chromosome is called………. .

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  17. Fill in the blanks: Continuity of life is maintained through…….and…… ...

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  18. Fill in the blanks: Mendel formulated law of purety of gametes on the...

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  19. Fill in the blanks: The composition of female sex-chromosomes is…. ...

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  20. Fill in the blanks: Wing of butterfly and wing of birds are examples ...

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