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NEET

Plant Growth and Development

Biology

Previous Years Questions

MCQ (Single Correct Answer)

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Which of the following growth regulators is an adenine derivative?
NEET 2022 Phase 2
The ability of plants to follow different pathways in response to environment leading to formation of different kinds of...
NEET 2022 Phase 2
Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has r...
NEET 2022
The gaseous plant growth regulator is used in plants to:
NEET 2022
Which one of the following plants does not show plasticity?
NEET 2022
The plant hormone used to destroy weeds in a field
NEET 2021
The site of perception of light in plants during photoperiodism is
NEET 2021
Plants follow different pathways in response to environment of phases of life to form different kinds of structures. Thi...
NEET 2021
Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the...
NEET 2020 Phase 1
Which of the following is not an inhibitory substance governing seed dormancy?
NEET 2020 Phase 1
What is the site of perception of photoperiod necessary for induction of flowering in plants?
NEET 2019
Fruit and leaf drop at early stages can be prevented by the application of
NEET 2017
The Avena curvature is used for bioassay of
NEET 2016 Phase 1
Phytochrome is a
NEET 2016 Phase 2
You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of ...
NEET 2016 Phase 2
Typical growth curve in plants is
AIPMT 2015 Cancelled Paper
Auxin can be bioassayed by
AIPMT 2015
What causes a green plant exposed to the light, on only one side, to bend towards the source of light as it grows?
AIPMT 2015 Cancelled Paper
Which one of the following growth regulators is known as 'stress hormone'?
AIPMT 2014
A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white -colour...
AIPMT 2014
Dr. F. went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending...
AIPMT 2014
During seed germination its stored food is mobilized by
NEET 2013
The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year ...
NEET 2013 (Karnataka)
Vernalization simulates flowering in
AIPMT 2012 Mains
Which one of the following generally acts as an antagonist to gibberellins?
AIPMT 2012 Mains
Through their effects on plant growth regulators, what do the temperature and light control in the plants?
AIPMT 2012 Mains
Root development is promoted by
AIPMT 2010 Mains
One of the commonly used plant growth hormone in tea plantations is
AIPMT 2010 Mains
Coiling of garden pea tendrils around any support is an example of
AIPMT 2010 Prelims
Photoperiodism was first characterised in
AIPMT 2010 Prelims
Phototropic curvature is the result of uneven distribution of
AIPMT 2010 Prelims
Which one of the following acids is a derivative of carotenoids?
AIPMT 2009
Senescence as an active developmental cellular process in growth and functioning of a flowering plant, is indicated in
AIPMT 2008
Importance of day length in flowering of plants was first shown in
AIPMT 2008
Which one of the following pairs, is not correctly matched?
AIPMT 2007
Opening of floral buds into flowers, is a type of
AIPMT 2007
The wavelength of light absorbed by Pr form of phytochrome is
AIPMT 2007
Treatment of seeds at low temperature under moist conditions to break its dormancy is called
AIPMT 2006
How does pruning help in making the hedge dense?
AIPMT 2006
Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease i...
AIPMT 2006
An enzyme that can stimulate germination of barley seeds is
AIPMT 2006
The ability of the Venus Flytrap to capture insects is due to
AIPMT 2005
One set of the plant was grown at 12 hours day and 12 hours night period cycles and it flowered while in the other set n...
AIPMT 2004
Cell elongation in internodal regions of the green plants takes place due to
AIPMT 2004
Coconut milk factor is
AIPMT 2003
Differentiation of shoot is controlled by
AIPMT 2003
Nicotiana sylvestris flowers only during long days and N.tabacum flowers only during short days. If raised in the labora...
AIPMT 2003
Plants deficient of element zinc, show its effect on the biosynthesis of plant growth hormone
AIPMT 2003
Seed dormancy is due to the
AIPMT 2002
Dwarfness can be controlled by treating the plant with
AIPMT 2002
Which hormone breaks dormancy of potato tuber?
AIPMT 2001
Hormone responsible for senescence is
AIPMT 2001
Which of the following prevents the fall of fruits?
AIPMT 2001
Which plant is LDP?
AIPMT 2001
By which action a seed coat becomes permeable to water
AIPMT 2000
Which hormone is responsible for fruit ripening?
AIPMT 2000
If the apical bud has been removed then we observe
AIPMT 2000

MCQ (More than One Correct Answer)

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One of the synthetic auxin is
AIPMT 2009

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