CELL DIVISION
MEIOSIS AND GENETIC VARIATION
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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: -An Andalusian chicken (found in Spain) is an example of incomplete dominance. An offspring produced shows incomplete dominance in its feathers as the parents (a white feathered male and a black feathered female chicken) breeds to produce an offspring with blue and tinged feathers.
Detailed explanation-3: -Gray: 100% Cross a BLACK chicken (BB) with a WHITE chicken (WW). These alleles show INCOMPLETE DOMINANCE.
Detailed explanation-4: -The F1 offspring in a cross between homozygous black cow (BB) and a homozygous white cow (WW) will be heterozygous (BW) having both black and white color (Co-dominance). 2. The offspring will be a mix of black and white color as both traits are expressed, due to co-dominance.