|
BM |
BM |
BM |
BM |
| BM |
BBMM |
BBMM |
BBMM |
BBMM |
| Bb |
BBMb |
BBMb |
BBMb |
BBMb |
| rM |
BrMM |
BrMM |
BrMM |
BrMM |
| rb |
BrMb |
BrMb |
BrMb |
BrMb |
This punnet square represents BBMM x BrMm
4 genotype present BrMm
4 phenotype BrMM
The Punnett square is a square diagram that is
used to predict the genotypes of a particular cross or breeding
experiment. It is named after Reginald C. Punnett, who devised the
approach. The diagram is used by biologists to determine the
probability of an offspring having a particular genotype
b))BrMm x BrMm
|
BM |
Bm |
rM |
rm |
| BM |
BBMM |
BBmM |
rBMM |
rBmM |
| Bm |
BBMm |
BBmm |
rBMm |
rBmm |
| rM |
BrMM |
BrmM |
rrMM |
rrmM |
| rm |
BrMm |
Brmm |
rrMm |
rrmm |
2 trait cross
16 squares
9 unique allele combinations
|   Genotype  |
  Count  |
  Percent  |
| rBmM |
4 |
25 |
| BBmM |
2 |
12.5 |
| rBMM |
2 |
12.5 |
| rBmm |
2 |
12.5 |
| rrmM |
2 |
12.5 |
| BBMM |
1 |
6.3 |
| BBmm |
1 |
6.3 |
| rrMM |
1 |
6.3 |
| rrmm |
1 |
6.3 |
C))BrMm x rrmm
|
BM |
Bm |
rM |
rm |
| rm |
BrMm |
Brmm |
rrMm |
rrmm |
| rm |
BrMm |
Brmm |
rrMm |
rrmm |
| rm |
BrMm |
Brmm |
rrMm |
rrmm |
| rm |
BrMm |
Brmm |
rrMm |
rrmm |
4 unique allele combination
4 nos BrMm, 4 Brmm,4 rrMm,4 rrmm are the genotypes
