Answer :
41.
Cross : GgBb X GgBB
Gg X Gg = GG, Gg, Gg, gg
Bb X BB = BB, BB, Bb, Bb
1/4 GG X 2/4 BB = 2/16 GGBB (black)
1/4 GG X 2/4 Bb = 2/16 GGBb (black)
2/4 Gg X 2/4 BB = 4/16 GgBB (black)
2/4 Gg X 2/4 Bb = 4/16 GgBb (black)
1/4 gg X 2/4 BB = 2/16 ggBB (yellow)
1/4 gg X 2/4 Bb = 2/16 ggBb (yellow)
So, Black (G_B_) coat colour,
= (2/16 + 2/16 + 4/16 + 4/16) X 100
= (12/16) X 100
= 75% (Answer).
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Cross : GGBb X GGBb
GG X GG = GG, GG, GG, GG
Bb X Bb = BB, Bb, Bb, bb
4/4 GG X 1/4 BB = 4/16 GGBB (black)
4/4 GG X 2/4 Bb = 8/16 GGBb (black)
4/4 GG X 1/4 bb = 4/16 GGbb (brown)
So, Black (G_B_) coat colour,
= (4/16 + 8/16) X 100
= (12/16) X 100
= 75% (Answer).
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