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Question
Inheritance of roan coat in cattle is an example of
Inheritance of roan coat in cattle is an example of
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Solution
The correct option is C Codominance
Coat colour in short-horned cattle is an example of co-dominance.
If a cattle with black coat is crossed with a cattle with white coat,
the F1 hybrids possess neither black nor white coat colour, but
have roan coat colour, where black and white patches appear separately.
The effect is produced due to juxtaposition of small patches of red and
white colour. Hence the alleles which are able to express themselves
independently when present together are called codominant alleles and
the heritance pattern is called co-dominance. On inbreeding, the roan
hybrids produce three types of cattle - red, roan and white in the
ratio of 1 : 2 : 1.
So, the correct answer is 'Codominance'.
Coat colour in short-horned cattle is an example of co-dominance.
If a cattle with black coat is crossed with a cattle with white coat,
the F1 hybrids possess neither black nor white coat colour, but
have roan coat colour, where black and white patches appear separately.
The effect is produced due to juxtaposition of small patches of red and
white colour. Hence the alleles which are able to express themselves
independently when present together are called codominant alleles and
the heritance pattern is called co-dominance. On inbreeding, the roan
hybrids produce three types of cattle - red, roan and white in the
ratio of 1 : 2 : 1.
So, the correct answer is 'Codominance'.
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