Igcse Model Questions Vol1 2025 Biology Question 5
Practice objective / multiple choice question 5 from the 2025 Igcse Model Questions Vol1 Biology examination.
A bacterial culture contains \(1.0 \times 10^{8}\) cells, of which \(0.01\%\) initially carry a plasmid conferring antibiotic resistance. During conjugation each resistant cell can transfer the plasmid to five susceptible cells per hour, and newly resistant cells become donors in the following hour. Assuming no cell division, how many resistant cells are present after 3 hours? Give your answer in scientific notation.
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This is Igcse Model Questions Vol1 2025 Biology Question 5. It is one of the objective questions from the 2025 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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