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
When mutation is confined to only one substitution, it is called
A
Translocation
✓
Point mutation
C
Base inversion
D
Frame shift
✓
Answer
Correct option: B.
Point mutation
b When mutation is confined to only one substitution, deletion, insertion then this type of mutation is called point mutation. Sickle-cell anaemia is the example of point mutation in which the Glutamic acid (Glu) is replaced by valine (val) at the sixth position of $\beta$-globin chain of haemoglobin molecule
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