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In asexual reproduction, variations aris...

In asexual reproduction, variations arise due to the changes occurring during DNA copying.

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Describe the changes occurring during synthesis phase.

Why in sexual reproduction variation is observed even though the DNA and chromosomes do not get doubled ?

Which is a false statement for variation ? a.All the variations in a species provide equal opportunity for survival. b.Very few variations are generated in asexual reproduction. c.Variations selected by the environmental factors cause the occurrence of evolution. d.The change in the genetic material (DNA) results in variation.

The …………………………….. characteristic comes into existence due to changes occurring in DNA.

A few statements with regard to sexual reproduction are give below : (i) Sexual reproduction does not always require two individuals. (ii) Sexual reproduction generally involves gametic fusion. (iii) Meiosis never occurs during sexual reproduction. (iv) External fertilisation is a rule during sexual reproduction. Choose the correct statements from the options below :

In plasmodium, asexual reproduction occurs through ………………….

Explain how sexual reproduction gives rise more visible variations than asexual reproduction. How evolution of those organisms that reproduce does this affect the sexually ?

Which of the following statements are false for asexual reproduction ? (I) Single parent is capable of producing offspring. (II) Offsprings are exact copies of their parent. (III) Zygote formation occur. (IV) It is slow and complex process. (A) I and II are false (B) I and III are false (C) III and IV are false (D) I and IV are false

Offspring formed by sexual reproduction exhibit more variation than those formed by Asexual reproduction because. (A) Sexual reproduction is a lengthy process. (B) Gametes of parents have qualitatively different genetic composition. (C) Genetic material comes from parents of two different species. (D) Greater amount of DNA is involved in sexual reproduction.

KUMAR PRAKASHAN-HEREDITY AND EVOLUTION-OBJECTIVE QUESTIONS AND ANSWERS
  1. The existing mankind, present on the earth has originally descended fr...

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  2. The reduction of weight in the beetle due to starvation …………………………….. ...

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  3. In asexual reproduction, variations arise due to the changes occurring...

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  4. State True or False. The garden pea plants of Pisum sativum selected b...

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  5. State True or False. In Mendel's experiments, characters of both the p...

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  6. Both the types of pea plants, used as parent generation by Mendel in h...

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  7. State True or False. Gene is a definite segment of DNA, which possesse...

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  8. State True or False. In human being, the son obtains one X-chromosome ...

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  9. State True or False. The sex determination in human being occurs right...

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  10. State True or False.In Dinosaurs, the feathers provided insulation in ...

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  11. State True or False. The internal structure and arrangement of bones o...

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  12. State True or False. The wings of birds and those of insects are homol...

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  13. In the experiment performed by Mendel on dihybrid inheritance, there a...

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  14. All human races are a single species.

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  15. State True or False. Since the life originated on the earth, the evolu...

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  16. State True or False. Two different species originated from a common an...

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  17. Identify the fossils in successive layer a, b, and c.

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  18. What is your conclusion from this diagram ?

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  19. Which diagram is correctly explained how does evolution proceed ? Why ...

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  20. From the diagram, state the result in case I, II and III.

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