Which one of the following best describe polygenic inheritance?
ABO blood group in human and flower colour of Mirabilis jalapa
Hair pigment of mouse and tongue rolling in human
Human eye colour and sickel-cell anaemia
Human height and colour of skin and eyes
A
ABO blood group in human and flower colour of Mirabilis jalapa
B
Hair pigment of mouse and tongue rolling in human
C
Human eye colour and sickel-cell anaemia
D
Human height and colour of skin and eyes
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Solution
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In polygenic inheritance, several sets of alleles may produce cumulative effect on the same character, i.e., human height and colour of skin and eye.
ABO group in human is an example of codominance, whereas flower colour of 4 O' clock plant is an example of incomplete dominance. Hair pigmental mouse is an example of recessive epistasis, Sickle-cell anaemia is an example of codominance.
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