Distance between two genes in a chromosome is measured in cross-over units which represent

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4.Principles of Inheritance and Variation

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The distance between two genes in a chromosome is measured in cross-over units which represent

Ratio of crossing over between them

Percentage of crossing over between them

Number of crossing over between them

None of these

Solution

(b) The cross over percentage differ for different pairs of genes because the amount of crossing over depend on the frequency with which breaks in the chromatids occur between the two genes.

This frequency further depends specially on the distance of these genes which are apart on the chromatids.

Standard 12

Biology

The term “linkage” was coined by

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(NEET-2015)

What map unit (Centimorgan) is adopted in the construction of genetic maps?

medium

(NEET-2019)

Select the incorrect statement(s) from the options given below with respect to dihybrid cross.

$I.$ Tightly linked genes on the same chromosome show higher recombinations.

$II.$ Genes far apart on the same chromosome show very few recombinations.

$III.$ Genes loosely linked on the same chromosome show similar recombinations.

medium

(AIIMS-2018)

For the preparation of genetic maps, the recombination frequencies between genes are additive over short distances but not over long distances due to

medium

If gene exchange rate is $30\%$ of the two linked genes, then the distance between these two genes is

medium

The distance between two genes in a chromosome is measured in cross-over units which represent

Solution

Similar Questions

The term “linkage” was coined by

What map unit (Centimorgan) is adopted in the construction of genetic maps?

For the preparation of genetic maps, the recombination frequencies between genes are additive over short distances but not over long distances due to

If gene exchange rate is $30\%$ of the two linked genes, then the distance between these two genes is

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