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Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation2 Marks
Question
$\alpha-$thalassemia is different from $\beta-$thalassemia. Justify.
✓

Answer

S.No
$\alpha-$Thalassemia
$\beta-$Thalassemia
1.
It is under the control of two genes $\mathrm{HBA}_1$ and $\mathrm{HbA}_2$ on chromosome 16.
It is controlled by a single gene HBB on chromosome 11.
2.
The synthesis of a chain is impaired.
 The synthesis of B chain is impaired.

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