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Nondisjunction may lead to a zygote cont...

Nondisjunction may lead to a zygote containing XXY sex chromosomes, what sex would this produce in Drosophila and in humans?

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Female in Drosophila, and abnormal male showing Klinefelter syndrome in humans
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ICSE-PRINCIPLES OF INHERITANCE AND VARIATION-PRACTICE QUESTIONS ( VERY SHORT ANSWER TYPE QUESTIONS)
  1. How many pairs of homologous chromosomes are present in male Drosophil...

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  2. What do you understand by the term aneuploidy?

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  3. Nondisjunction may lead to a zygote containing XXY sex chromosomes, wh...

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  4. What is meant by chromosomal mutation?

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  5. What are codominant alleles? Give one example.

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  6. How many autosomes are found in a single mature human sperm?

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  7. Give the scientific name and also the common name of the plant in whic...

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  8. The map distance in a certain organism between genes A and B is 8 unit...

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  9. Name the mechanism by which new alleles appear in a population.

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  10. Which of the following diseases could be avoided by analysing the pedi...

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  11. Which of the following conditions could be detected by karyotyping the...

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  12. Which of the following disorders is a haemoglobin based genetic proble...

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  13. Under what circumstances it is possible for a father and a son to suff...

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  14. Give the meaning of the term allele.

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  15. At which particular stage of chromosomes do errors like deletion of ge...

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  16. Why is Drosophila male fly referred to as heterogametic?

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  17. The gene I that controls the ABO blood grouping in human beings has th...

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  18. In the following pedigree chart, state if the trait is autosomal domin...

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  19. Aa Bb was crossed with aa bb. What would be the phenotypic ratio of pr...

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  20. Name the genetic disorder caused due to the presence of extra copy of ...

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