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Assertion (A) :- polytene chromosomes ha...

Assertion (A) :- polytene chromosomes have a high amount of DNA .
Reason( R) :- poly chromosomes are formed by repeated chroomtids.

A

Both (a) and (R ) are true (r ) is the correct explanation of (A)

B

both (A) and(R ) are true but (R ) is not the correct explanations of (A)

C

(A) is true statement but (R ) is false

D

Both (A) and (r ) arae false

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The correct Answer is:
A
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GRB PUBLICATION-CHROMOSOMAL BASIS OF INHERITANCE-Chromosome mapping
  1. Polytene Chromosomes are formed by

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  2. The salivary gland Chromosomes in the dipteran larvae, are useful in g...

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  3. Assertion (A) :- polytene chromosomes have a high amount of DNA . Re...

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  4. The point at which the polytene chromosomes appeart to be attached tog...

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  5. Balbiani rings are the structural features of :

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  6. Balbiani rins are the centres for :

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  7. Baliani discovered a special type of chromosomes type chromosomes from...

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  8. In polytene chromosomes dark bands are visble . These bands are formed...

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  9. Balbiani rings are sites of

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  10. What is C value paradox?

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  11. The haploid amount of DNA in a eukaryotic cell is termed :

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  12. Molecular wight of yeast cell is ,

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  13. How many base -pairs (bp) are found in the haploid genome of humans?

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  14. A point mutation comprising the dubsition of a purine by a pyrimidine ...

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  15. Heterchormatin: 1.is the inert segment of the chromosomesadjacent t...

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  16. Haploids are more suitable for mutation studies than the diploids. Thi...

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  17. Linkage group : 1. have gemes ,which were linked togther in a single...

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  18. When a cluster of genes shows linkage behaviour they

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  19. The distance between the genes a,b,c and d in mapping units are a-d=3....

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  20. In which mode of inheritance do you except more maternal influence amo...

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