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Practice Microbial Genetics - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
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Compare question counts across years.
How the classified questions are distributed by difficulty.
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Top topics across the included previous year papers.
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Question coverage for the most populated papers. Every active PYP paper remains listed below.
Open a focused page built from the same verified paper data.
Explore previous-paper coverage, trends and focused practice for Mutation, DNA Repair and Gene Transfer.
Explore previous-paper coverage, trends and focused practice for Gene Regulation and Microbial Genomes.
Explore previous-paper coverage, trends and focused practice for Phage and Viral Genetics.
Newest papers appear first. Search these papers or sort by year and name.
| Paper name | Year | Attempt | |
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Life Sciences (XL) 20262026 | 2026 |
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Life Sciences (XL) 20252025 | 2025 | |
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Life Sciences (XL) 20232023 | 2023 | |
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Life Sciences (XL) 20192019 | 2019 | |
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Life Sciences (XL) 20172017 | 2017 | |
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Life Sciences (XL) 20162016 | 2016 | |
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Life Sciences (XL) 20142014 | 2014 | |
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Life Sciences (XL) 20132013 | 2013 | |
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Life Sciences (XL) 20122012 | 2012 | |
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Life Sciences (XL) 20112011 | 2011 | |
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Life Sciences (XL) 20102010 | 2010 | |
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Life Sciences (XL) 20092009 | 2009 | |
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Life Sciences (XL) 20072007 | 2007 | |
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A varied preview from the papers represented in this selection, with every available option.
Match the correct combination of plasmid DNA to their properties
| Plasmid DNA | Property |
|---|---|
| (P) Conjugative plasmid | (1) can integrate into the chromosome and replicate when the chromosome is copied |
| (Q) Cryptic plasmid | (2) capable of transferring itself between prokaryotes |
| (R) Episome | (3) Does not appear to have any function |
To select for spontaneously arising histidine auxotrophs in a population, you would use a medium containing