MCQ
dB is the standard abbreviation used for the quantitative expression of
- Athe density of bacteria in a medium
- ✓a particular pollutant
- Cthe dominant Bacillus in a culture
- Da certain pesticide
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| Type of cells used | Result | |
| Experiment $1$ | Secondary spermatocytes were injected | Fertility was not restored |
| Experiment $2$ | Spermatogonia were injected | Fertility was restored for the rest of the mouse's life |