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  1. I've recently learned about this. These traits are pairs of alleles that the parents pass down to the child. Heterozygous traits are pairs that have both dominant alleles and recessive...

    2 Answers · Science & Mathematics · 17/12/2008

  2. 2 phenotypes , if we take tall plant ,trait is tallnes then it may be Tt and also may be TT but tt is recessive . . .

    2 Answers · Science & Mathematics · 18/05/2013

  3. 1. They all can taste it. (They are all heterozygous for the trait ie can taste = C, can't taste = c their phenotype would be Cc. 2. 3 of the offspring ou of 4 would taste it and the other would not. (1 phenotype of CC, 2 of Cc, and 1 of cc.)

    1 Answers · Science & Mathematics · 26/10/2007

  4. The taster man and woman could be TT or Tt. But if both their mothers were non-tasters (tt), then both of them must have the t allele (from their mother). Their mating would be Tt x Tt ----> 1...

    1 Answers · Science & Mathematics · 29/04/2013

  5. Woman: ttR? Woman's father: T?rr Man: T?rr Man's mother: tt?? From the data above: Woman's genotype would be ttRr (r from her father) Man's genotype would be Ttrr (t from his mother...

    1 Answers · Science & Mathematics · 09/02/2009

  6. If you're crossing BbTt x BbTt, the proportion of bbT_ would be 3/16. When doing a dihybrid cross, 9/16 are dominant for both traits, 3/16 are dominant for one and recessive for the other, 3/16 are the other way around, and 1/16 is...

    1 Answers · Science & Mathematics · 15/11/2015

  7. Because the people who could taste the PTC could be either homozygous dominant or heterozygous dominant, we ...

    1 Answers · Science & Mathematics · 02/11/2011

  8. PTC taster or PTC non taster Everybody has to be one or the other.

    3 Answers · Science & Mathematics · 04/08/2008

  9. unattached earlobes are dominant, PTC i'm not sure but this is what i found...as in the picture above, about 75% of people can taste PTC while 25% cannot. tongue roller is dominant...

    1 Answers · Science & Mathematics · 18/05/2010

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