Biology Sample Question Paper Sheet - Class Xii, Central Board Of Secondary Education, 2010 Page 39
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3910.
The substrate lactose regulates the lac-operon.
½ × 10 = 5
OR
DNA finger printing ; (ii) Amplification by polymerase chain reaction
(iv)
-
Separation of DNA fragments by gel electrophoresis
(v)
-
Southern blotting
1 × 5 = 5
(vi)
-
Hybridization using probe tragment
(viii)
M atching of DNA fragment photographs and interpretation.
39
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