Crossing homozygous plants with differing characteristics
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I had to cross a homozygous dominant smooth, yellow seeded plant with a homozygous excessive wrinkled, green seeded plant, and this is what I came up with:
A. The P1 genotypes ___YY___ x ___yy__
B. Possible gametes are ___Y___, __Y___, ___y__ and __y___
*Then I had to use the Punnett square and complete the cross answering the questions, and this is what I came up with:
The genotypes? ___Yy___
What are the phenotypes of all of the F1 individuals? ___________
Then I started to have problems with the following:
I'm suppose to be a helper in Mendel's pea garden and he has given me a sack of pea seeds, and told me to count the smooth seed coats and wrinkled seed coats. I had counted 690 smooth (S) and 230 (s). These are the F2 plants.
a. The phenotypic ratio is ________: _________
b. The P1 genotypes are _______ x ________
c. What is the genotype of the F1 generation? ____________
d. Cross two of the F1 plants to see if the answer is correct.
The expert examines crossing homozygous plants with differing characteristics.