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In Drosophila, the sex is determined by...

In Drosophila, the sex is determined by

A

The ratio of number of X-chromosomes to the sets of autosomes

B

X and Y chromosomes

C

The ratio of pairs of X-chromosomes to the pairs of autosomes

D

Whether the egg is fertilized or develops parthenogenetically

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The correct Answer is:
C
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ALLEN-GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION-EXERCISE-I (CONCEPTUAL QUESTIONS)
  1. Genic balance of sex determination was proposed by

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  2. Number of Barr bodies in XXXX female

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  3. In Drosophila, the sex is determined by

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  4. In Drosophila male differentiation is controlled by :-

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  5. Sex determination ratio in a organism is given by (X)/(A)=1.5, then or...

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  6. Barr body is associated with

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  7. In male grass hopper and moths there are two pairs of autosomes and :-

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  8. Which of the following symbols are used for represeting sex chromosome...

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  9. If somatic cells of a human male contain single barrbody, the genetic ...

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  10. The theory where ratio between the number of X chromosomes and number ...

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  11. Sex determination in humans takes place by :-

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  12. In Drosophila sex index of super female is :-

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  13. If X/A Ratio of two Drosophila is 0.6 and 0.33 respecively what would ...

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  14. Which of the following genotype represent intersex Drosophila :-

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  15. In which organism female in homogametic & also have one chromosomes mo...

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  16. Grasshopper is an example of

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  17. Which of the following is resposible for sex determination in chick :-

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  18. In which of the following sex is determined by female individual -

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  19. Male heterogamy found in case of

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  20. In which of the following monosomic male is found

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