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If a trait A exists in 10% of a populati...

If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?

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Trait B becuause in asexual reproduction traits which are present in the previous generation are carried over to next generation with minimal variations. Trait B have higher percentage so it is likeliy to have arisen earlier.
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Knowledge Check

  • Which of the following is not a direct conclusion that can be drawn from Mendel's Experiment ? a) Only one parental trait is expressed b) Two copies of each trait is inherited in sexually reproducing organism c) For recessive trait to be expressed, both copies should be identical d) Natural selection can alter frequency of an inherited trait.

    A
    Only one parental trait is expressed
    B
    Two copies of each trait is inherited in sexually reproducing organism
    C
    For recessive trait to be expressed, both copies should be identical
    D
    Natural selection can alter frequency of an inherited trait.

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    A
    `46%`
    B
    `44%`
    C
    `38%`
    D
    `36%`

  • 10% of Brazil's population migrated to South Affrica 10% of the remaining migrated to America and 10% of rest migrated to Australia. If the female population which was left in Brazil remained only 3,64,500 , Find the population of Brazil city before the migration the female population was half the male population and this ratio did not change after the migration ?

    A
    `1800000`
    B
    `1500000`
    C
    `1600000`
    D
    `1400000`
    • NCERT-HEREDITY AND EVOLUTION-Exercise
    1. If a trait A exists in 10% of a population of an asexually reproducing...

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    2. How does the creation of variations in a species promote survival?

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    3. How do Mendel’s experiments show that traits may be dominant or recess...

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    4. How do Mendel’s experiments show that traits are inherited independent...

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    5. A man with blood group A marries a woman with blood group O and their ...

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    6. How is the sex of the child determined in human beings?

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    7. What are the different ways in which individuals with a particular tra...

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    8. Why are traits acquired during the life-time of an individual not inhe...

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    9. Why are the small numbers of surviving tigers a cause of worry from th...

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    10. What factors could lead to the rise of a new species?

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    11. Will geographical isolation be a major factor in the speciation of a s...

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    12. Will geographical isolation be a major factor in the speciation of an ...

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    13. Give an example of characteristics being used to determine how close t...

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    14. Can the wing of a butterfly and the wing of a bat be considered homolo...

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    15. What are fossils? What do they tell us about the process of evolution

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    16. Why are human beings who look so different from each other in terms of...

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    17. In evolutionary terms, can we say which among bacteria, spiders, fish ...

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    18. A Mendelian experiment consisted of breeding tall pea plants bearing v...

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    19. An example of homologous organs is

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    20. In evolutionary terms, we have more in common with

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