STD 12 - 4. principal of inheritance and variation — BIOLOGY STD 12 Science — Question
Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 4. principal of inheritance and variation1 Mark
MCQ
Sickle cell anaemia is due to
A
Hormones
B
Viruses
✓
Genes
D
Bacteria
✓
Answer
Correct option: C.
Genes
c (c)Sickle-cell anaemia is a genetic disease reported from negroes due to a molecular mutation of gene $HbA$ on chromosome $11$ which produces the $\beta $chain of adult haemoglobin.
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