The correct option is B α_2 δ_2 Hemoglobin A _2 #160;(HbA _2 ) #160;is a normal variant of #160;hemoglobin A #160;which #160;cons ...

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Amino Acids

HbA 2 is com...

Question

HbA $_{2}$ is composed of

α_{2}

β_{2}

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α_{2}

γ_{2}

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α_{2}

δ_{2}

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α_{2}

α_{2}

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Solution

The correct option is B $α_{2}$ $δ_{2}$
Hemoglobin A $_{2}$ (HbA $_{2}$ ) is a normal variant of hemoglobin A which consists of two alpha and two delta chains. HbA $_{2}$ exists in very small amounts in all adult humans approximately 1.5% of all Hb molecules and is increased in people with sickle cell disease. Hence, option C is correct.

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