Difficulty distribution
How the classified questions are distributed by difficulty.
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Practice Molecular Taxonomy and Phylogeny - Microbial Taxonomy and Diversity - 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 Molecular Taxonomy and Phylogeny. 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.
Newest papers appear first. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Life Sciences (XL) 2025 | 2025 | 1 | View paper |
| Life Sciences (XL) 2021 | 2021 | 1 | View paper |
| Life Sciences (XL) 2019 | 2019 | 1 | View paper |
| Life Sciences (XL) 2016 | 2016 | 1 | View paper |
| Life Sciences (XL) 2012 | 2012 | 1 | View paper |
| Life Sciences (XL) 2009 | 2009 | 1 | View paper |
Practice every matching question in batches of 20, with every available option.
Carl Woese established that short subunit rRNA sequences can be used to reveal evolutionary relationships between various organisms. Based on this, which one of the following options is the established phylogenetic arrangement of the three domains of life?
