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Pure Breeding Parent
• Purple (I1I1) and Starchy (TT)
Cross 1
F1 of Purple x Purple
1) What are the parent genotypes?
2) What are the possible gametes from each parent?
3) Construct a 2 by 2 Punnett Square for the cross.
4) What are the F1 genotype(s)?
Pure Breeding Parent
• Yellow (i2i2) and Starchy (TT)
F1 of Yellow x Yellow
• Another example of a
“true-breeding” stock
Pure Breeding Parent
• Red (I3I3) and Starchy (TT)
F1 of Red x Red
• Another example of a
“true-breeding” stock
Pure Breeding Parent
• Yellow (i2i2) and Sweet (tt)
F1 of Sweet x Sweet
• Another example of a
“true-breeding” stock
Pure Breeding Parent
• White (i4i4) and Starchy (TT)
F1 of White x White
• Another example of a
“true-breeding” stock
Cross 2 (Monohybrid)
F1 of Purple x Yellow
5) Which is the dominant: purple or yellow?
6) What must the parent genotypes for color be?
7) Construct a 1 by 1 Punnett Square for this cross.
8) What is the F1 phenotype and genotype?
Cross 3 (Monohybrid)
F1 of Red x White
9) Which is the dominant: red or white?
10) What is the F1 phenotype and genotype?
11) What must the parent genotypes for color be?
Cross 4 (Monohybrid)
F1 of Purple x Purple
12) What is the phenotypic ratio in the F1?
13) What are the genotypes and phenotypes of the F1?
14) What must the parent genotype and phenotype be?
15) Construct a 2 by 2 Punnett square for this cross.
16) Chi Square test of hypothesis and conclusion?
Cross 5 (Monohybrid)
F1 Offspring of Purple x Yellow
17) What is the phenotypic ratio in the F1?
18) What must the parent genotypes and phenotypes be?
19) What is it called when you use a homozygous
recessive to test an unknown genotype which is showing
the dominant phenotype?
Cross 6 (Monohybrid)
F1 of Parent Red x White
20) What is the phenotypic ratio in the F1?
21) What must the parent genotypes and phenotypes be?
Cross 7 (Monohybrid)
F2 from Parent Red x White
22) What is the phenotypic ratio in the F2?
23) What must the original parent genotypes and
phenotypes be to produce the F1 that produced this
F2?
Cross 8 (Monohybrid)
F1 of Parent Starchy x Sweet
24) What is the phenotypic ratio in the F1?
25) What must the parent genotypes and phenotypes
be?
Cross 9 (Monohybrid)
F2 of Parent Starchy x Sweet
26) What is the phenotypic ratio in the F2?
27) What must the original parent genotypes and
phenotypes be?
Cross 10 (Dihybrid)
F1 of Purple Starchy x Purple Starchy
28) What is the F1 phenotypic ratio?
29) What was the parent genotype and phenotype?
30) Question deleted.
31) Question deleted.
32) Chi Square test of hypothesis and conclusion?
Cross 11 (Dihybrid)
F1 of Purple Starchy x Yellow Sweet
33) What is the F1 phenotypic ratio?
34) What was the parent genotype and phenotype?
35) Construct a 4 by 1 Punnett Square for this cross.
36) What is it called when you use a homozygous recessive to
test an unknown genotype which is showing the dominant
phenotype(s)?
37) Chi Square test and conclusion?