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Flowering, Light and Hormonal Regulation - Plant development; Cell and Tissue Morphogenesis - Life Sciences Previous Year Questions
Practice Flowering, Light and Hormonal Regulation - Plant development; Cell and Tissue Morphogenesis - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
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Flowering, Light and Hormonal Regulation question pattern
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3questions
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3
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| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Life Sciences (XL) 2024 | 2024 | 1 | View paper |
| Life Sciences (XL) 2021 | 2021 | 1 | View paper |
| Life Sciences (XL) 2010 | 2010 | 1 | View paper |
All Flowering, Light and Hormonal Regulation previous year questions
Practice every matching question in batches of 20, with every available option.
2010 · Life Sciences · Plant development; Cell and Tissue Morphogenesis · Flowering, Light and Hormonal Regulation
Life Sciences (XL) 2010
Identify the CORRECT statements
In Arabidopsis, vernalization is associated with
P. Chromatin modification at the FLC (FLOWERING LOCUS C) locus
Q. Degradation of the FLC protein
R. Inactivating the FLC protein by post-translational modification
S. Down-regulation of FLC transcript
In Arabidopsis, vernalization is associated with
P. Chromatin modification at the FLC (FLOWERING LOCUS C) locus
Q. Degradation of the FLC protein
R. Inactivating the FLC protein by post-translational modification
S. Down-regulation of FLC transcript
2021 · Life Sciences · Plant development; Cell and Tissue Morphogenesis · Flowering, Light and Hormonal Regulation
Life Sciences (XL) 2021
The diagram describes the ABC model of flower patterning in Arabidopsis where the A, B and C functions are operational in the whorls (1+2), (2+3) and (3+4), respectively, in the wild-type flower. Removal of A or C function results in the floral organ arrangements as (carpel; stamen; stamen; carpel) or (sepal; petal; petal; sepal), respectively. Based on these observations, which ONE of the following molecular pathways is CORRECT for floral organ pattern generation? Arrow indicates activation and bar indicates inhibition.
2024 · Life Sciences · Plant development; Cell and Tissue Morphogenesis · Flowering, Light and Hormonal Regulation
Life Sciences (XL) 2024
In wild-type Arabidopsis thaliana, the four types of floral organs (sepal, petal, stamen, carpel) are arranged in concentric whorls from outside to inside. With reference to the ABC model of floral organ patterning, match the homeotic mutants in Group 1 with their respective arrangements of organs in the four whorls given in Group 2.
| Group 1 | Group 2 | ||
|---|---|---|---|
| (P) | A class mutants | (i) | sepal, sepal, carpel, carpel |
| (Q) | B class mutants | (ii) | sepal, petal, petal, sepal |
| (R) | C class mutants | (iii) | carpel, stamen, stamen, carpel |
| (iv) | sepal, sepal, petal, petal |
