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Previous year questions with solutions · 2000 – 2026
| Year | Questions | Papers | Avg / paper | Weightage |
|---|---|---|---|---|
| 2026 | 6 | 2 | 3 | 5.94% ↑60.4% |
| 2025 | 2 | 1 | 2 | 3.70% ↓29.6% |
| 2024 | 6 | 2 | 3 | 5.26% ↑10.5% |
| 2023 | 3 | 1 | 3 | 4.76% ↑4% |
| 2022 | 6 | 2 | 3 | 4.58% ↓8.4% |
| 2021 | 3 | 1 | 3 | 5.00% ↓16.7% |
| 2020 | 3 | 1 | 3 | 6.00% ↑59% |
| 2019 | 2 | 1 | 2 | 3.77% ↑115.1% |
| 2017 | 1 | 1 | 1 | 1.75% ↓32.7% |
| 2016 | 3 | 2 | 1.5 | 2.61% ↓5.2% |
| 2015 | 3 | 2 | 1.5 | 2.75% ↓48.6% |
| 2014 | 3 | 1 | 3 | 5.36% ↑98.2% |
| 2013 | 3 | 2 | 1.5 | 2.70% ↓7.2% |
| 2012 | 3 | 2 | 1.5 | 2.91% ↓47.6% |
| 2010 | 5 | 2 | 2.5 | 5.56% ↑55.6% |
| 2009 | 2 | 1 | 2 | 3.57% ↓1.8% |
| 2008 | 2 | 1 | 2 | 3.64% ↓38.2% |
| 2007 | 3 | 1 | 3 | 5.88% ↓30.6% |
| 2006 | 5 | 1 | 5 | 8.47% ↑433.9% |
| 2005 | 1 | 1 | 1 | 1.59% ↓70.9% |
| 2004 | 3 | 1 | 3 | 5.45% ↑69.1% |
| 2003 | 2 | 1 | 2 | 3.23% ↓31.2% |
| 2002 | 3 | 1 | 3 | 4.69% ↓44.7% |
| 2001 | 5 | 1 | 5 | 8.47% ↑14.4% |
| 2000 | 4 | 1 | 4 | 7.41% |
⚠ 1 of these questions are out of the current syllabus (marked on the question).
It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?
Fruit and leaf drop at early stages can be prevented by the application of
The Avena curvature is used for bioassay of
You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?
Phytochrome is a
Auxin can be bioassayed by
What causes a green plant exposed to the light, on only one side, to bend towards the source of light as it grows?
Typical growth curve in plants is
Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of what significance is this experiment?
A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white-coloured like albinos. Which of the following terms will you use to describe them?
Which one of the following growth regulators is known as 'stress hormone'?
During seed germination its stored food is mobilized by
The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year by application of
Which of the following best illustrates "FEEDBACK" in development ?
Through their effects on plant growth regulators, what do the temperature and light control in the plants?
Which one of the following generally acts as an antagonist to gibberellins?
Vernalization stimulates flowering in
One of the commonly used plant growth hormones in tea plantations is
Root development is promoted by
Phototropic curvature is the result of uneven distribution of
Photoperiodism was first characterised in
Coiling of garden pea tendrils around any support is an example of
One of the synthetic auxin is
Which one of the following acids is a derivative of carotenoids?
Importance of day length in flowering of plants was first shown in
Senescence as an active developmental cellular process in growth and functioning of a flowering plant, is indicated in
The wavelength of light absorbed by Pr form of phytochrome is
Which one of the following pairs, is not correctly matched?
Opening of floral buds into flowers, is a type of
An enzyme that can stimulate germination of barley seeds is