25%
AA X aa= 4 Aa======the only possible cross between a true breeding homozygous dominant and a true breeding homozygous recessive.
For the two given parents: 1 offspring will have the homozygous genotype: YY 1 offspring will have the homozygous genotype: yy 2 offspring will have the heterozygous genotype: Yy
F1 offspring obtained by monohybrid cross of AA and AA will be Aa.
homozygous
homozygous? homozygous? homozygous dominant
The offspring's genotype will be AA. Both parents are homozygous dominant, AA, having only dominant alleles to pass on to their offspring. So each parent can pass on only the dominant allele (A) to its offspring. So the offspring will also be homozygous dominant, AA.
The genotypic ratio of a cross of Aa and Aa is: one AA, one aa, and two Aa. Or 1:2:1
Since they are capital letters they stand for a dominant allele. Both the letters stand for a different trait. This is saying these two different organisms were dominant in those specific traits.
offspring will be produced in following AA :Aa:aa and is in the ratio of 1:2:1 so the probabiltiy is 50%
A Punnet square is used to find the probablitiy of certain genetic traits in the offspring of an organism (example: the traits in the children) by taking the trait of each possible parent gamete (sex cell) and combining the combinations within the squares.Example:A aA AA Aaa Aa aaSo the offspring here have a 25% chance of being homozygous (both dominant) dominant for the trait, 50% heterozygous (one dominant and one recessive) dominant for the trait, and 25% (homozygous (both recessive)) recessive for the trait.
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AAa