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How many pairs of chromosomes are presen...

How many pairs of chromosomes are present in human beings? Out of these how many are sex chromosomes? How many types of sex chromosomes are found in human beings?

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23 pairs of chromosomes are present in human beings. One pair of these are sex chromosomes, Two types of sex chromosomes are there: XX and XY.
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VK GLOBAL PUBLICATION-HEREDITY AND EVOLUTION -SHORT ANSWER QUESTIONS - I
  1. Do genetic combination of mothers play a significant role in determini...

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  2. How does use and disuse of an organ help in evolution of a new species...

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  3. A very small population of a species faces a greater threat of extinct...

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  4. Does the occurrence of diversity of animals on earth suggest their div...

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  5. All the human races like Africans, Asians, Europeans, Americans and ot...

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  6. A change in DNA that is useful for one property to start with, can bec...

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  7. List two differences in tabular form between dominant trait and recess...

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  8. How many pairs of chromosomes are present in human beings? Out of thes...

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  9. Why offsprings differ from parents in certain characters?

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  10. What are the causes of variations?

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  11. Give the pair of contrasting traits of the following characters in pea...

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  12. What is the contribution of Mendel to genetics?

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  13. Do genetic combination of mothers play a significant role in determini...

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  14. How does use and disuse of an organ help in evolution of a new species...

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  15. A very small population of a species faces a greater threat of extinct...

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  16. Does the occurrence of diversity of animals on earth suggest their div...

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  17. All the human races like Africans, Asians, Europeans, Americans and ot...

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  18. A change in DNA that is useful for one property to start with, can bec...

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  19. List two differences in tabular form between dominant trait and recess...

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  20. How many pairs of chromosomes are present in human beings? Out of thes...

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