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Biology · 2022 · 2 marks
CBSE 2022 · Region 5 · Set 2 · Q6
What would be the best method to measure the total population density of a dense bacterial culture in a petridish and why?
What would be the best method to measure the total population density of a dense bacterial culture in a petridish and why ?
Marking-scheme solution
-Relative density-Measuring total number (absolute population densities) is not easily adoptable method /Cannot be done as populations are large / Counting is impossible.
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CBSE Class 12 Biology past-paper question from the 2022 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.