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28 Sep 2019
You performed breeding experiments on a newly discovered species ofunicorn. the horns came in three colors: white, black and gray. Asingle gene controls color. When you crossed pure-breedingwhite-horned individuals with a pure-breeding black-horned ones,you got all gray-horned F1 offspring. You then crossed thegray-horned offspring with each other. In the F2 you gotwhite-,gray- and black-horned offspring in a 1:2:1 ratio.
a) What is the genetic mechanism behind the horn color of theseunicorns?
b) Outline the crosses explained above, giving RATIOS, GENOTYPES,and PHENOTYPES of the P, F1, and F2. Use Punnet Squares to helpdetermine.
You performed breeding experiments on a newly discovered species ofunicorn. the horns came in three colors: white, black and gray. Asingle gene controls color. When you crossed pure-breedingwhite-horned individuals with a pure-breeding black-horned ones,you got all gray-horned F1 offspring. You then crossed thegray-horned offspring with each other. In the F2 you gotwhite-,gray- and black-horned offspring in a 1:2:1 ratio.
a) What is the genetic mechanism behind the horn color of theseunicorns?
b) Outline the crosses explained above, giving RATIOS, GENOTYPES,and PHENOTYPES of the P, F1, and F2. Use Punnet Squares to helpdetermine.
a) What is the genetic mechanism behind the horn color of theseunicorns?
b) Outline the crosses explained above, giving RATIOS, GENOTYPES,and PHENOTYPES of the P, F1, and F2. Use Punnet Squares to helpdetermine.
Bunny GreenfelderLv2
28 Sep 2019
