#Question id: 11833
#Unit 6. System Physiology – Plant
Analysis of mRNA from tomato fruits from wild-type and
transgenic tomato plants genetically engineered to lack ethylene has revealed
that gene expression during ripening is regulated by at least two independent
pathways;
I) Ethylene-dependent pathway
II) Ethylene-independent pathway
Some given genes involved in these two pathways,
a) ACC oxidase
b) respiratory metabolism
c) ACC synthase
d) chlorophyllase
e) lycopene and aroma biosynthesis
Which of the following is the correct combination from the given pathways and its included genes?
#Question id: 11834
#Unit 6. System Physiology – Plant
Hook formation and maintenance result from ethylene-induced
asymmetric growth, indicating that
phytochrome is the photoreceptor involved in this process
a) Red light induces hook folding, and far-red light
reverses the effect of red
b) close interaction between phytochrome and ethylene
controls hook opening
c) Red light inhibits ethylene formation, promoting growth
on the inner side, thereby causing the hook to open
Which of the following combination from the given statements is correct?
#Question id: 11835
#Unit 6. System Physiology – Plant
What is the role of ETO1 (ethylene overproducing 1) in ethylene signalling pathway?
#Question id: 11836
#Unit 6. System Physiology – Plant
During the ethylene signalling, absence of ethylene EIN2 phosphorylates at the C-terminus, and preventing cleavage, these phosphorylation done by
#Question id: 11837
#Unit 6. System Physiology – Plant
Which of the following given hormones are involved in the evolutionarily related to bacterial two-component histidine kinases?
#Question id: 11838
#Unit 6. System Physiology – Plant
Which of the following ethylene receptors in Arabidopsis) have intrinsic histidine kinase activity, and this activity does not appear to play an essential role in signalling?