Your cart is empty.
Practice Microbial Genetics - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
Every graph below is calculated only from this selection.
Year-wise coverage for Microbial Genetics. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
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. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Life Sciences (XL) 2026 | 2026 | 2 | View paper |
| Life Sciences (XL) 2025 | 2025 | 2 | View paper |
| Life Sciences (XL) 2023 | 2023 | 2 | View paper |
| Life Sciences (XL) 2019 | 2019 | 1 | View paper |
| Life Sciences (XL) 2017 | 2017 | 1 | View paper |
| Life Sciences (XL) 2016 | 2016 | 2 | View paper |
| Life Sciences (XL) 2014 | 2014 | 2 | View paper |
| Life Sciences (XL) 2013 | 2013 | 1 | View paper |
| Life Sciences (XL) 2012 | 2012 | 2 | View paper |
| Life Sciences (XL) 2011 | 2011 | 2 | View paper |
| Life Sciences (XL) 2010 | 2010 | 2 | View paper |
| Life Sciences (XL) 2009 | 2009 | 3 | View paper |
| Life Sciences (XL) 2007 | 2007 | 2 | View paper |
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