#Question id: 1146
#Unit 4. Cell Communication and Cell Signaling
Which of the following general statement(s) about a G protein–coupled receptor is (are) TRUE?
#Question id: 581
#Unit 1. Molecules and their Interaction Relevant to Biology
The main difference between chemical and enzyme kinetics is that
#Question id: 28711
#Unit 2. Cellular Organization
vesicular traffic between the ER and the Golgi and at some of the evidence supporting the general mechanisms, select the correct combination between column A and B;
#Question id: 11815
#Unit 6. System Physiology – Plant
Some given statements about
the cytokinin signalling pathway;
a) Cytokinin receptor
CRE1 probably functions as a monomer
b) Two other hybrid sensor kinases (AHK2 and AHK3) may also
act as cytokinin receptors in Arabidopsis
c) Activated receptor activates their histidine kinase
activity, The phosphate is transferred to an aspartate residue (D) on the fused
receiver domains
d) The phosphate is then transferred to a conserved
histidine present in an AHP protein that transfer the phosphate to an aspartate
residue located within the receiver
domain of type-B ARRs only
e) The phosphorylation of the type-B ARR activates the
output domain to induce transcription of genes encoding type-A ARRs.
f) The phosphorylated type-A ARRs feed back to negatively
regulate cytokinin signaling, thus dampening cytokinin responses
Which of the following are the correct prediction about cytokinin signalling?
#Question id: 5691
#Unit 8. Inheritance Biology
Which of the following most accurately explains the cause for the abnormal numbers of chromosomes during human reproduction that can result in Down syndrome, Turner’s syndrome, or Klinefelter’s syndrome?