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Interference is 1. decrease in frequenc...

Interference is
1. decrease in frequency of crossing over because of heterochromatin
2. chiasma at one point disfavours formation of chiasma at second point
3. both correct
4. none of the above

A

decrease in frequency of crossing over because of heterochromatin

B

chiasma at one point disfavours formation of chiasma at second point

C

both correct

D

none of the above

Text Solution

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The correct Answer is:
B
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TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
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  2. A dihybrid test cross ratio for two linked genes in a hybrid is

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  3. Interference is 1. decrease in frequency of crossing over because of ...

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  4. A diploid with only one allele (e.g., man is for XY chromosomes) is kn...

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  8. In a linear chromosome map, distances between 4 loci is as follows, a-...

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  10. A haemophilic man marries a normal homozygous woman. What is he probab...

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  11. A normal woman whose father was haemophilic (X^(h)Y) marries a normal ...

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  12. A woman (whose father is colour bling but mother is normal) marries a ...

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  13. A recessive gene expresses only in homozygous condition. Some times, a...

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  14. Of a normal couple, half of sons are haemophilic and half the daughter...

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  15. A holandric gene in man causes hypertrichosis. When a man with hairy e...

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  17. A colour blind man marries the daughter of a colour blind lady and a n...

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  18. Both father and mother have allele for PKU but are phenotypically norm...

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