A land developer and several ecologists are discussing how a parcel of private land should be developed with housing while saving 20 hectares as natural habitat. The land developer suggests that the 20 hectares be divided into 20 separate 1-hectare areas, spread out across the area. The ecologists suggest that it would be better to have one intact parcel of 20 hectares on one side of the larger area. What is the significance of these different arrangements of the 20 hectares?

#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?

#Question id: 11839

#Unit 6. System Physiology – Plant

Ethylene receptor are localized  in___