MCQ
Depolarization of a stimulated nerve is maintained by
- A$C{a^{ + + }}$
- B$C{l^ - }$
- C$M{g^{ + + }}$
- ✓${K^ + }$
Therefore it is the movement of ${K^ + }$ that maintains the depolarized state.
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Column $A$ Column $B$
(i) Oncogenes (1)Causes $AIDS$
(ii) Single circular $DNA$ (2)Lac-Operon concept
(iii) Splicing (3) Component of bacterial chromosome
(iv) Jacob and Monad (4) Processing of $mRNA$ molecules
(5) When activated cause cancer
$(i) (ii) (iii) (iv)$ respectively
Reason : No recessive individual are obtained in the monohybrid test cross.