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Geneticist plot the relative locations o...

Geneticist plot the relative locations of genes on chromosomes by which of these methods

A

Exposing animals to radiations

B

Calculating the number of genes

C

Using powerful micrscope

D

Determining the frequency of cross overs(crossing over)

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The correct Answer is:
D
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ARIHANT NEET-CHROMOSOMAL BASIS OF INHERITANCE-Chapter Exercises A Taking it together (Assorted Questions of the Chapter for Advanced level Practice )
  1. Drosophila is used in genetic studies because

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  2. If gene grequency between genes a and b 15%, c and d 19%. What will be...

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  3. Eye colour in fruitfly is a sex-linked trait and the cross between whi...

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  4. Mirabilis, normal leaves (a) and variegated leaves (b) colour occur in...

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  5. Offsprings resemble their parents but are not exactly like them. This ...

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  6. If a plant were trisomic for one of its chromosomes and these chromoso...

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  7. Geneticist plot the relative locations of genes on chromosomes by whic...

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  8. Bateson used the terms coupling and repulsion, while discovering linka...

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  9. When an albino female plnt of maize is crossed with normal green male ...

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  10. Cytoplasmic male sterility in maize is the phenotypic manifestation of...

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  11. Complete linkage in Drosophila males

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  12. Polyploidy is induced in tomatoes by

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  13. What form of inheritance does a trait in human have, which is found in...

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  14. Linkage and cytological maps for the same chromosome

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  15. Genes A and B are linked 12 map units aprt. A heterozygous individual...

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  16. A cross of a wild type red-eyed female Drosophila with a violet-eyed m...

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  17. Crossing over occurs at four-strand stage. This was proved by the obse...

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  18. Based on the relative proportion of parental and recombinant phenotype...

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  19. In maize, coloured endosperm (c) is dominant over colourless (c) and s...

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  20. Individual homozygous for cd genes were crossed with wild type(++). Th...

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