In certain species of animals,black fur(B) is dominant over brown fur(b).Show the possible ratio of genotype and phenotypes of the offspring in F1 & F2 generations.
Dear student,
Please find below the solution to the asked query
As black fur(B) is dominant over brown fur(b), therefore the cross obtained is as follows:
BB X bb
On crossing the two the progeny obtained are Bb which are all Black furred.
In F2 generation, Bb is crossed with Bb. The cross is as follows:
Phenotypic ratio- 3 (Black fur): 1 (brown fur)
Genotypic ratio- 1 (BB): 2 (Bb): 1 (bb)
Please find below the solution to the asked query
As black fur(B) is dominant over brown fur(b), therefore the cross obtained is as follows:
BB X bb
On crossing the two the progeny obtained are Bb which are all Black furred.
In F2 generation, Bb is crossed with Bb. The cross is as follows:
| B | b | |
| B | BB | Bb |
| b | Bb | bb |
Phenotypic ratio- 3 (Black fur): 1 (brown fur)
Genotypic ratio- 1 (BB): 2 (Bb): 1 (bb)
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