HEREDITY
CODOMINANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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2 BB:2 Bb:0 bb
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0 BB:4 Bb:0 bb
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0 BB:2 Bb:2 bb
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1 BB:2 Bb:1 bb
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Detailed explanation-1: -Andalusian fowls have two pure forms black and white, If black forms (BB) and white forms (WW) are crossed, F1 individuals appear blue coloured (BW), due to incomplete dominance.
Detailed explanation-2: -In Andalusian fowl, the gene for black plumage (AB) is codominant to the gene for white plumage (AW). The heterozygous genotype results in expression of the black and white feathers and is referred to as blue plumange. 2. Cross a fowl with black plumage with a fowl with blue plumage.
Detailed explanation-3: -Hint: One of the breeds of domestic chicken is the Andalusian fowl, also known as the blue Andalusian. Spain is indigenous to this breed. The crossing between them creates several breeds of this fowl. They are either black, blue, or feathered in white.