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Genetic Mapping of Drosophila Melanogaster

Autor:   •  October 19, 2018  •  2,206 Words (9 Pages)  •  196 Views

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249+218/979= 0.477017365

0.477017365 x 100= 47.7 mu

ParentsFemale x Male

+ (Wild Type) x PR, AP (Purple - eye colour & Apterous - wing size)

Table 4: F2 Progeny Ratios

Phenotype & Genotype

Number

Proportion

Ratio

+ (Wild Type)

3

0.0031

1.000

PR (Purple)

497

0.5129

165.667

AP (Apterous)

464

0.4788

154.667

PR & AP (Purple & Apterous)

5

0.0052

1.667

Total:

969

Recombinant Value:Parent 1= 497 Parent 2= 464 Recombinant 1= 5 Recombinant 2= 3

5+3/969= 0.008255934

0.008255934 x 100= 0.83 mu

ParentsFemale x Male

+ (Wild Type) x PR, VG (Purple - eye colour & Vestigial - wing size)

Table 5: F2 Progeny Ratios

Phenotype & Genotype

Number

Proportion

Ratio

+ + +

(Wild Type - WT)

61

0.0622

1.452

PR, + +

(Purple, WT, WT)

447

0.4557

10.643

VG, + +

(Vestigial, WT, WT)

431

0.4393

10.262

PR, VG, +

(Purple, Vestigial, WT)

42

0.0428

1.000

Total:

981

Recombinant Value:Parent 1= 447 Parent 2= 431 Recombinant 1= 61 Recombinant 2= 42

61+42/981=0.104994903

0.104994903 x 100= 10.5 mu

ParentsFemale x Male

+ (Wild Type) x PR, DP (Purple - eye colour & Dumpy - wing shape)

Table 6: F2 Progeny Ratios

Phenotype & Genotype

Number

Proportion

Ratio

+ + +

(Wild Type -WT)

143

0.1423

1.000

PR, + +

(Purple, WT, WT)

375

0.3731

2.622

DP, + +

(Dumpy, WT, WT)

344

0.3423

2.406

PR, DP, +

(Purple, Dumpy, WT)

143

0.1423

1.000

Total:

1005

Recombinant Value:Parent 1= 375 Parent 2= 344 Recombinant 1= 143 Recombinant 2= 143

143+143/1005= 0.284577114

0.284577114 x 100= 28.5 mu

ParentsFemale x Male

+ (Wild Type) x PR, RI (Purple - eye colour & Radius Incompletus - wing vein)

Table 7: F2 Progeny Ratios

Phenotype & Genotype

Number

Proportion

Ratio

+ + +

(Wild Type - WT)

246

0.2541

1.070

PR, + +

(Purple, WT, WT)

243

0.2510

1.057

RI, + +

(Radius Incompletus, WT, WT)

249

0.2572

1.083

PR, RI, +

(Purple, Radius Incompletus, WT)

230

0.2376

...

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