Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

ZoologyPrinciples of Inheritance and VariationGenetic DisordersHard2 minPYQ_2012

ZoologyHardsingle choice

Assertion : $Hb^{s} Hb^{s}$ denotes the homozygous condition for sickle-cell anaemia.Reason :It occurs due to substitution of glutamic acid by valine at the $6^{th}$ position of $β$ -chain of $Hb$ .

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Solution:

Sickle cell anaemia is an autosomal hereditary disorder in which the erythrocytes become sickle shaped. The disorder or disease is caused by the formation of an abnormal haemoglobin called haemoglobin-s denoted as Hbs. Thus, the genotype of an individual homozygous for sickle cell anaemia is written as HbsHbs.

Stream:AIIMSSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Genetic Disorders

⏱ 2mℹ️ Source: PYQ_2012

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