Discussion
Read the statements given below :
(a) Doctors have favoured gene therapy to control sweet gene.
(b) A sweet taste receptor recognizes the amount of sweetness in food.
(c) Heredity factors have absolutely no role to play in inheriting the sweet gene.
Answer: A
The answer is that (a) and (c) are incorrect, (b) is correct.
(a) is incorrect: the passage says 'Doctors warn against any form of gene therapy which seeks to deactivate the sweet gene', so they do not favour it.
(b) is correct: a team member is quoted saying 'A sweet taste receptor recognises the sweet content of food', and the sweet content of food is its amount of sweetness.
(c) is incorrect: the passage says 'The same gene exists in humans, so it means that if your parents have a sweet tooth then you probably will as well', which is heredity at work.
Any option calling (a) or (c) correct, or calling all three incorrect, is therefore wrong.
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