GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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25% red, 50% speckled, 25% blue
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50% red, 50% blue
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50% blue, 50% speckled
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25% red, 25% speckled, 50% blue
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Detailed explanation-1: -Codominance is also seen in plants. For example, rhododendrons with simultaneous expression of red and white genes for flower colour display flowers with both red and white petals.
Detailed explanation-2: -Spotted cows and flowers with petals of two different colors are examples of codominance, for example. Codominance also occurs in some less visible traits, such as blood type. The A and B alleles for blood type can both be expressed at the same time, resulting in type AB blood.
Detailed explanation-3: -In codominance, both alleles are expressed together in the offspring. If we cross a red flower and white flower that have a codominance inheritance pattern, the offspring would be flowers with red and white patches on them.
Detailed explanation-4: -The incomplete dominance is referred to as the dilution of the dominant allele with respect to the recessive allele, resulting in a new heterozygous phenotype. For example, the pink color of flowers (such as snapdragons or four o’clock flowers), the shape of hairs, hand sizes, voice pitch in humans.