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What are codominant alleles? Give one ex...

What are codominant alleles? Give one example.

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When both alleles express themselves equally, as coat colour in cattle or MN blood groups or AB blood groups in man.
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ICSE-PRINCIPLES OF INHERITANCE AND VARIATION-PRACTICE QUESTIONS ( VERY SHORT ANSWER TYPE QUESTIONS)
  1. Nondisjunction may lead to a zygote containing XXY sex chromosomes, wh...

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  2. What is meant by chromosomal mutation?

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  3. What are codominant alleles? Give one example.

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

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

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

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

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

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

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

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

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  12. Give the meaning of the term allele.

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

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

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

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

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

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

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  19. Write the genotype of offspring produced by a cross between a homozygo...

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  20. A man blames his wife for giving birth to a female child. Who is respo...

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