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Reproduction in Organisms-CBSE Class 12th NCERT Solution

Jul 8, 2013 14:26 IST

    Get, detailed solutions to the questions of the chapter Reproduction in Organisms from NCERT textbooks. The objective is to helping students regarding the pattern of answering the question as per the cbse latest marking scheme.Cbse.jagranjosh.com provided you NCERT solutions for classes 12th math and science subjects.





    Get some sample questions answered here

    1. Why is reproduction essential for organisms?

    Answer: Reproduction is essential for organism because through reproduction we can reproduce our young ones who are similar to us in most of our characters.
    Reproduction enables us to continue the life of species even after our death.

    2. Which is better mode of reproduction sexual or asexual?

    Answer: Sexual mode of reproduction is better mode than asexual because in sexual mode there is fusion of male and female gametes through which we get variation in
    offspring as compared to their parents.

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    3. Why is offspring formed by asexual reproduction referred to as clone?

    Answer: In asexual reproduction there is no fusion of gamete as only single parent can produce their young ones. That’s why young one produced is morphologically
    and genetically identical to their parent and simply referred as clone.

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    4. Offspring formed due to sexual reproduction have better chances of survival, why? Is this statement always true?

    Answer: Sexual reproduction involves fusion of male and female gametes. In the process of formation of zygote there are exchange of genes and traits between gametes. In the process of crossing- over and segregation of chromosomes, there are much more chances of elimination of unfavorable traits from offspring, as a result the offspring will not be identical to its parents and will have a better chance of survivaval. No if the mother is suffering from any major disease like aids, then the offspring will not survive.





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