#Question id: 12718
#Unit 6. System Physiology – Plant
COLUMN I
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COLUMN II |
A) Physical sensing
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i) usually results from the
detection of by-products that accumulate in cells due to the uncoupling of
enzymatic or electron transfer reactions, such as the accumulation of ROS
during stress caused by too much light.
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B) Biophysical sensing
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ii) often involves the presence of
specialized proteins that have evolved to sense a particular stress; for
example, calcium channels that can sense changes in temperature and alter
Ca2+ homeostasis.
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C) Metabolic sensing
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iii) refers to modifications of
DNA or RNA structure that do not alter genetic sequences, such as the changes
in chromatin that occur during temperature stress.
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D) Biochemical sensing
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iv) refers to the mechanical
effects of stress on the plant or cell structure, for example, the
contraction of the plasma membrane from the cell wall during drought stress.
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E) Epigenetic sensing
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v) might involve changes in
protein structure or enzymatic activity, such as the inhibition of different
enzymes during heat stress.
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#Question id: 1571
#Unit 4. Cell Communication and Cell Signaling
Double-stranded RNA (dsRNA) recognize by
#Question id: 10497
#Unit 6. System Physiology – Plant
Blue light stimulated opening of stomata, closing of stomata is also takes place by many other such mutants and mechanisms such as,
a.) npq1 mutants leads to closing of stomata
b.) In high PPFD leads to conversion of violaxanthin to zeaxanthin which will leads to closing of stomata
c.) Green light in the 500 to 600 nm region of the spectrum, abolishes the opening of stomata
d.) Mutant of phototropin 1 & 2 (PHOT1/PHOT2) leads to closing of stomata
e.) Starch content in the guard cell decreases during closing of stomata at the end of the day
Which of the following given statements will be correct for closing of stomata?
#Question id: 15682
#Unit 2. Cellular Organization
#Question id: 3512
#Unit 8. Inheritance Biology
How many different type of gamete produced by plant having genotype AABBccDd?