MCQ
A restriction endonuclease is named EcoRI. What does the part "co" stand for?
- AColon
- BCoelom (body cavity)
- CCoenzyme
- ✓Coli
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| Column $- I$ | Column $- II$ |
| A- Tapetum | i- Degenerate during development |
| B- Intine | ii- Resistant organic materials |
| C- Vegetative cell | iii- Pollen tube |
| D- Sporopollenin | iv- Provide nourishment to pollen grains |
$A.$ Barrier methods of contraception
$B.$ Cover the cervix during coitus
$C.$ Protect the user from contracting $STDs$
$D.$ They are reusable