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The distance between the genes a,b,c and...

The distance between the genes a,b,c and d in mapping units are a-d=3.5 , b-c=1,a-b=6,c-d=1.5,a-c=5 Find out the sequence of arrangement of these genes:

A

ACDB

B

ABCD

C

ACBD

D

ACBD

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The correct Answer is:
B
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A scientist performed the gene mapping experiments in maize. He mapped the gene on chromosomes on the basis of % crossing over between different genes. One map unit corresponds to one % crossing over or recombination. Te genes showing more than 50% recombination were not supposed to be linked on same chromosome. In crossing over studies on maize, scientist observed the following % crossing over between A B, C, d- between. A and D 10% between A and C 3% between genes C and D 7% between genes A and B 5% , and between genes C and B 8% on the basis of above observation find out the correct sequence of tenes Alt B, C, and D on chromosomes :-

ARIHANT NEET-CHROMOSOMAL BASIS OF INHERITANCE-Chapter Exercise Medical entrances gallery (Collection of questions Asked in NEET and Various medical Entrance Exams)
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  2. the linkage map of X -chroosomes of fruitfly has 66 units with yellow ...

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

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  4. Sex chromosomes of a female bird are represented by

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  5. When a mutation is limited to be the substiution of one nucleotide for...

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  6. In the hexaploid wheat, the haploid (n) and basic (x) numbers of chrom...

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  7. What would happen if in a gene encoding a polypeptide of 50 amino acid...

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  8. Crossing over that results in genetic recombination in higher organism...

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

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  10. In mutational event, when adenine is replaced by guanine, it is a cas...

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  11. After a mutation at a genetic locus the character of an organism chan...

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

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  13. How many linkage group are there in bacteria E. coli :-

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  14. If the ratio between X- chromosomes and compete set of autosome is 0.5...

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  15. According to genic balance theory, which was given by CB Bridges, the ...

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  16. Genic blance theory of sex determination stated by CB Bridges is relat...

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  17. Which of the following is generally used for induced mutagenesis in cr...

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  18. Chromosome theory of inheritance was proposed by

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  19. Which of the chromosomal formulation is responsible for the expression...

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