Phenetic classification of organisms is based on
- observable characteristics of existing organisms
- the ancestral lineage of existing organisms
- dendrogram based on DNA characteristics
- sexual characteristics.
Previous year questions with solutions · 2000 – 2026
| Year | Questions | Papers | Avg / paper | Weightage |
|---|---|---|---|---|
| 2026 | 3 | 2 | 1.5 | 2.97% ↓67.9% |
| 2025 | 5 | 1 | 5 | 9.26% ↑251.9% |
| 2024 | 3 | 2 | 1.5 | 2.63% ↓44.7% |
| 2023 | 3 | 1 | 3 | 4.76% ↑24.8% |
| 2022 | 5 | 2 | 2.5 | 3.82% ↓42.7% |
| 2021 | 4 | 1 | 4 | 6.67% ↑11.1% |
| 2020 | 3 | 1 | 3 | 6.00% ↑59% |
| 2019 | 2 | 1 | 2 | 3.77% ↑3.8% |
| 2018 | 2 | 1 | 2 | 3.64% ↓48.2% |
| 2017 | 4 | 1 | 4 | 7.02% ↑101.8% |
| 2016 | 4 | 2 | 2 | 3.48% ↓5.2% |
| 2015 | 4 | 2 | 2 | 3.67% ↓58.9% |
| 2014 | 5 | 1 | 5 | 8.93% ↑10.1% |
| 2013 | 9 | 2 | 4.5 | 8.11% ↑67% |
| 2012 | 5 | 2 | 2.5 | 4.85% ↓33.4% |
| 2011 | 7 | 2 | 3.5 | 7.29% ↑118.8% |
| 2010 | 3 | 2 | 1.5 | 3.33% ↓68.9% |
| 2009 | 6 | 1 | 6 | 10.71% ↑96.4% |
| 2008 | 3 | 1 | 3 | 5.45% ↓44.4% |
| 2007 | 5 | 1 | 5 | 9.80% ↑92.8% |
| 2006 | 3 | 1 | 3 | 5.08% ↑60.2% |
| 2005 | 2 | 1 | 2 | 3.17% ↓41.8% |
| 2004 | 3 | 1 | 3 | 5.45% ↓51.7% |
| 2003 | 7 | 1 | 7 | 11.29% ↑261.3% |
| 2002 | 2 | 1 | 2 | 3.12% ↑84.4% |
| 2001 | 1 | 1 | 1 | 1.69% ↓69.5% |
| 2000 | 3 | 1 | 3 | 5.56% |
⚠ 1 of these questions are out of the current syllabus (marked on the question).
Phenetic classification of organisms is based on
Which one of the following pairs of plants are not seed producers?
Sexual reproduction in Spirogyra is an advanced feature because it shows
Plants reproducing by spores such as mosses and ferns are grouped under the general term
Which one pair of examples will correctly represent the grouping spermatophyta according to one of the schemes of classifying plants?
Which one of the following is categorised under living fossils ?
Chlorenchyma is known to develop in the :
Which of the following is without exception in angiosperms?
Which of the following plants produces seeds but not flowers?
Cycas has two cotyledons but not included in angiosperms because of
A student observed an alga with chlorophyll a, d and phycoerythrin, it should belong to
In ferns, meiosis takes place at the time of
Plant group with largest ovule, largest tree, and largest gametes is