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A roan bull is bred to three cows. Cow A has the same genotype as the roan bull. cow B is red and cow C is white. what  proportions of roan cows are expected in the offsprings of each group of cows :-
  • a)
    2,1,1
  • b)
    1,2,1
  • c)
    1,1,2
  • d)
    3,1
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A roan bull is bred to three cows. Cow A has the same genotype as the ...
Coat colour in cows is governed by two alleles; W (red) and w (white). These two alleles show codominance and the hybrid genotype (Ww) has a roan coloured coat. The genotype of a roan cattle is "Ww", that of red is "WW" and that of a white one is "ww". A cross between a roan bull and roan cow produces red, roan and white phenotypes in 1:2:1 ratio respectively. A cross between roan bull (Ww) and red cow (WW) produces roan and red phenotypes in 1:1 ratio. A cross between roan bull (Ww) and white cow (ww) produces roan and white phenotypes in 1:1 ratio. The proportions of roan cows in the offspring of each group of cow is 2,1,1. Thus, the correct answer is option A.
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A roan bull is bred to three cows. Cow A has the same genotype as the ...
1st case me phenotypic ratio(Rr×Rr)=1:2:1 Rr=2
2nd case me phenotypic ratio(RR×Rr)=1:1 Rr=1
3rd case me phenotypic ratio(rr×Rr) =1:1 Rr=1
so ratio is 2:1:1 option A
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A roan bull is bred to three cows. Cow A has the same genotype as the roan bull. cow B is red and cow C is white. what proportions of roan cows are expected in the offsprings of each group of cows :-a)2,1,1b)1,2,1c)1,1,2d)3,1Correct answer is option 'A'. Can you explain this answer?
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A roan bull is bred to three cows. Cow A has the same genotype as the roan bull. cow B is red and cow C is white. what proportions of roan cows are expected in the offsprings of each group of cows :-a)2,1,1b)1,2,1c)1,1,2d)3,1Correct answer is option 'A'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A roan bull is bred to three cows. Cow A has the same genotype as the roan bull. cow B is red and cow C is white. what proportions of roan cows are expected in the offsprings of each group of cows :-a)2,1,1b)1,2,1c)1,1,2d)3,1Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A roan bull is bred to three cows. Cow A has the same genotype as the roan bull. cow B is red and cow C is white. what proportions of roan cows are expected in the offsprings of each group of cows :-a)2,1,1b)1,2,1c)1,1,2d)3,1Correct answer is option 'A'. Can you explain this answer?.
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