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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.
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Compare question counts across years.
How the classified questions are distributed by difficulty.
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Question coverage for the most populated papers. Every active PYP paper remains listed below.
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| Paper name | Year | Attempt | |
|---|---|---|---|
Life Sciences (XL) 20252025 | 2025 |
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Life Sciences (XL) 20212021 | 2021 | |
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Life Sciences (XL) 20192019 | 2019 | |
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Life Sciences (XL) 20162016 | 2016 | |
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Life Sciences (XL) 20122012 | 2012 | |
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Life Sciences (XL) 20092009 | 2009 | |
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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?
