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What is crossing over? In which stage of...

What is crossing over? In which stage of cell division it takes place?

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Crossing over is the process of exchange of genetic material or segments between non-sister chromatids of two homologous chromosomes.In pachytene of meiosis I,crossing over occurs.
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MODERN PUBLICATION-PRINCIPLES OF INHERITANCE AND VARIATION-REVISION EXERCISES (SHORT ANSWER TYPE-I(A. QUESTIONS FROM STATE BOARD EXAMINATIONS))
  1. Why Mendel's work remain hidden for so many years?

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  2. What is crossing over? In which stage of cell division it takes place?

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  3. How is sex determined in human beings?

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  4. What will be the phenotypes of F(1) generation when normal vision man ...

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  5. What will be the phenotypes of F(1) generation if normal vision man (X...

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  6. What is polyploidy and aneuploidy?

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  7. Name two sex linked diseases.

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  8. How did Mendel make sure that the pea plants were true breeding?

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  9. How is Down's syndrome produced?

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  10. Define the term co-dominance with one example.

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  11. What is incomplete dominanace ?Give one example.

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  12. Who rediscovered Mendelism?

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  13. Stydy the following cross and answer the questions. (a)Write the ...

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  14. Observe the figures and answer the questions. (a)Identify the sy...

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  15. Write the cuase and two symptoms of Klinefelter's syndrome.

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  16. What are multiple alleles?Give one example.

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  17. Differentiate between back cross and test cross.

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  18. What are point mutations?Give one example of point mutations

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  19. Differentiate between homozygous and heterozygous organisms.

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  20. What is pleiotropy ?Give one example?

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