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NEET UG BIOLOGY MCQ: PRINCIPLE OF INHERITANCE AND VARIATION

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Haemophilia is related to

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Correct option: C

Colour blindness

Option D (Sex –linked recessive) is correct because the disease appears in 3 out of 5 sons, while neither of the daughters are affected, suggesting X-linked recessive inheritance where carrier mothers pass it to their sons.

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A woman has an X-linked condition on one of her

\mathrm{X}

chromosomes. This chromosomes can be inherited by Some individuals with blood group –A may inherit the genes for blonde hair, while other individuals with blood group – A may the gene for brown hair. This can be best explained by the principle of On crossing two heterozygous tall plants (Tt), and total of 500 plants were obtained in

{F_1}

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{F_1}

generation? Colourblindness is caused due to Syndrome stands for In phenylketonuria mental retardation takes place due to accumulation of