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Abhisar

  • one year ago

Let's see who can solve this c: A roan bull is bred to three cows. Cow A has the same genotype as 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. Answer Choices are 2,1,1 1,2,1 1,1,2 3,1

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  1. anonymous
    • one year ago
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    with group of cows do you mean ofspring of 2 of the 3 cows? like AB AC and BC?

  2. anonymous
    • one year ago
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    R is red, W is white and the genotype RW leads to roanness A:RWX RW: 25% RR 50% RW 25% WW B:RRXRW: 50% RW 50% RR C:WWX RW: 50% RW 50% WW so in every group half of the cows is roan

  3. Abhisar
    • one year ago
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    @shreehari499

  4. shreehari499
    • one year ago
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    But there's no option like that so wait..lemme try it

  5. shreehari499
    • one year ago
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    I think there's an involvement of codominance

  6. shreehari499
    • one year ago
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    WW- Red bull Ww- Roan ww- White

  7. shreehari499
    • one year ago
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    Ww(roan bull) * Ww (roan cow) We get WW,Ww,Ww,ww so the no. of roan bull is 2

  8. shreehari499
    • one year ago
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    2nd, Ww ( roan bull)* WW(red cow) We get WW and Ww so the ratio no.of roan bull is 1

  9. shreehari499
    • one year ago
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    3rd, Ww (Roan bull) * ww (White cow) We get Ww and ww Ratio of no of roan bull is 1

  10. shreehari499
    • one year ago
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    So the answer is 1 i.e 2:1:1

  11. shreehari499
    • one year ago
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    Is it correct @Abhisar ? I'll be back soon!

  12. Abhisar
    • one year ago
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    Yes, that's correct. Since the question is asking proportions.

  13. Abhisar
    • one year ago
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    @niels5x9 , your concept is correct.

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