Blog 11 due 10/31 10:00 am
In sweet peas, purple flower color (P) is dominant over white (p), but there is also a control gene such that if the plant has a “C”, the purple has “permission” to express itself. If the plant is “cc,” the purple does not “have permission” to express itself and the flower will be white anyway. If a plant with homozygous purple, controlled flowers is crossed with a plant with white, non-controlled flowers, calculate the genotype and phenotype ratios of the F1 and F2 generations.
PPCC x ppcc
ReplyDeleteF1:genotype-PpCc phenotype-purple
PpCc x PpCc
F2:genotype:
PPCC-1
PPCc-2
PpCC-2
PpCc-4
PPcc-1
Ppcc-2
ppCC-1
ppCc-2
ppcc-1
phenotype:Purple-9 White-7
PPCCxPpCc
ReplyDeleteF1
Genotype: PpCc
Phenotype: purple
F2
PpCcxPpcc
Genotype:
1 PPCC
2 PpCC
1 ppCC
2 PPCc
4 PpCc
2 ppCc
1 PPcc
2 Ppcc
1 ppcc
Phenotype:
9 Purple
7 White
PPCC x PpCc
ReplyDeleteF1:
Genotype: PpCc
Phenotype: Purple
F2:
PpCcxPpCc
Genotype:
PPCC - 1
PpCC - 2
ppCC - 1
PPCc - 2
PpCc - 4
ppCc - 2
PPcc - 1
Ppcc - 2
ppcc - 1
Phenotype:
9 Purple
7 White
PPcc x ppCC
ReplyDeleteF1 Genotype- PpCc
Ratio- 1:0:0:0:0:0:0:0:0
F1 Phenotype- Purple
Ratio- 1:0
PpCc x PpCc
F2 Genotypes:
PPCC- 1
PPCc- 2
PPcc- 1
PpCC- 2
PpCc- 4
Ppcc- 2
ppCC- 1
ppCc- 2
ppcc- 1
Ratio: 1:2:1:2:4:2:1:2:1
Phenotypes: Purple (9) White (7)
Ratio: 9:7
PPCC x ppcc
ReplyDeleteF1- PpCc purple controlled flowers.
F2- PpCc x PpCc
1/16 PPCC
2/16 PpCC
1/16 ppCC
2/16 PPCc
4/16 PpCc
2/16 ppCc
1/16 PPcc
2/16 Ppcc
1/16 ppcc
9 purple flowers
7 white flowers
F1 Generation
ReplyDeletePPcc x ppCC
Genotype- All PpCc
Ratio- 1:0
Phenotype- All Purple
Ratio- 1:0
F2 Generation
PpCc x PpCc
Genotypes:
PPCC- 1
PPCc- 2
PPcc- 1
PpCC- 2
PpCc- 4
Ppcc- 2
ppCC- 1
ppCc- 2
ppcc- 1
Ratio: 1:2:1:2:4:2:1:2:1
Phenotypes: Nine Purple Seven White
Ratio: 9:7
F1 Generation= PPcc x ppCC
ReplyDeleteGenotype- PpCc
Phenotype- 100 % Purple
F2 Generation=PpCc x PpCc
Genotypes:
PPCC- 1
PPCc- 2
PPcc- 1
PpCC- 2
PpCc- 4
Ppcc- 2
ppCC- 1
ppCc- 2
ppcc- 1
Phenotypes:
9 Purple
7 White
F1 Generation
ReplyDeletePPcc x ppCC
Genotype- All PpCc
Ratio- 100%
Phenotype- All Purple
Ratio- 100%
F2 Generation
PpCc x PpCc
Genotypes:
PPCC- 1
PPCc- 2
PPcc- 1
PpCC- 2
PpCc- 4
Ppcc- 2
ppCC- 1
ppCc- 2
ppcc- 1
Phenotypes:
9 Purple
7 White
f1 generation: PPcc x ppCC
ReplyDeletegenotype - PpCc
ratio- 100%
phenotype- purple
patio- 100%
f2 generation: PpCc x PpCc
genotypes:
PPCC - 1
PPCc - 2
PPcc - 1
PpCC - 2
PpCc - 4
Ppcc - 2
ppCC - 1
ppCc - 2
ppcc - 1
phenotypes:
7 white
9 purple