mcq biology

ICMR JRF Examination Model Question Paper-1 with Answers

1. The average size of 70S ribosomes of prokaryotes are: a.      ~ 200 Å b.      ~ 250 Å c.      ~ 290 Å d.      ~ 303 Å 2. Which of the following is an example for chemolithotroph? a.       Acidithiobacillus ferrooxidans b.       Nitrosomonas c.       Nitrobacter […]

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