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Multiple alleles are present...

Multiple alleles are present

A

In different chromosomes

B

At different loci on chromosome

C

At the same locus on homologus chromosomes

D

At the non homologous chromosome

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The correct Answer is:
C
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Multiple alleles can be found only when a population is studied because -

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Assertion : ABO blood group system provides a good example of multiple alleles Reason : In ABO blood group system, when I^(A) and I^(B) alleles are present together, they both express their own types

Differentiate between multiple allelism and pleiotropy with the help of an example each.

ALLEN-GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION-EXERCISE-I (CONCEPTUAL QUESTIONS)
  1. In a multiple allele system, a gamete to have

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  2. In human beings blood grouping is controlled by

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  3. Multiple alleles are present

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  4. Which of the following disorders is not caused by pleiotropic alleles

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  5. Epistatic gene differs from dominant gene in

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  6. (A) Pleiotropic genes have multiple phenotypic effect (B) Multiple a...

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  7. In a genetic cross having recessive epistasis, F(2) phenotypic ratio w...

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  8. Sickle cell anaemia is due to

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  9. Assertion: In four o'clock or snapdragon plant, a cross between a homo...

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  10. Incomplete dominance is found in

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  11. In Mirabills jalapa , the homozygous white(rr) and Red (RR) flower col...

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  12. A child with mother of A group and father of AB group, will not have t...

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  13. Define epistasis and give one example of this phenomenon. How is the p...

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  14. Possible blood groups of children born to parents having A and AB gr...

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  15. A man with blood group B marries a women with blood group A and their ...

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  16. A child with mother of 'A' blood group and father of 'AB' blood group ...

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  17. If mother has blood group B, fathe has A group, the offspring will be ...

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  18. Two nonallelic genes produces the new phenotype when present together ...

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  19. Sickle cell anemia is

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  20. Both the alleles express in a heterozygote when they are

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