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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-chromosome to the sets of autosomes

B

X and Y chromosomes

C

The ratio of X-chromosomes to the pairs of autosomes

D

Whether the egg is fertilized or develops parthenogenetically

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A
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AAKASH INSTITUTE-PRINCIPLES OF INHERITANCE AND VARIATION-Assignment (SECTION-C) Previous Years Questions
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  2. Mammorary glands in female, moustaches and beard in muman males are ex...

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  3. In Drosophila, the sex is determined by

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  4. One of the parents of a cross has mutation in mitochondria. In that cr...

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  5. Lack of independent assortment between two genes A and B in fruit fly ...

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  6. What kind of evidences suggested that man is more closely related with...

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  7. The recessive gene located on X-chromosome of humans are always

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  8. A male human is heterozygous for autosomal genes A and B and is also h...

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  9. A self-fertilizing trihybrid plant forms

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  10. There are three genes a,b,c percentage of crossing over between a an...

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  11. the linkage map of X -chroosomes of fruitfly has 66 units with yellow ...

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  12. In a plant, red fruit (R ) is dominant over yellow fruit (r ) and tall...

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  13. A normal woman, whose father was colour blind is married to a norma...

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  14. Hogo de Vries gave his mutation theory on organic evolution while work...

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  15. Triticale, the first man-made cereal, crop has been obtained by cros...

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  16. Normally DNA molecule has A-T, G-C pairing. However, these bases can e...

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  17. The most striking example of point mutation is found in a disease call...

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  18. Identify the one, which causes gene mutation

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  19. mutations are mainly responsible for controlling :

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  20. Which of the following is the main category of mutation

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