#Question id: 1388
#Unit 4. Cell Communication and Cell Signaling
When Lucifer yellow, a small dye, is injected into a neuron of the retina, neighboring neurons become rapidly labeled. If the retina is incubated in dopamine prior to Lucifer yellow injection, only the injected neuron becomes labeled. These findings suggest which of the following?
I. Neurons of the retina communicate via gap junctions.
II. Dopamine is transferred between cells via gap junctions.
III. Dopamine decreases the permeability of gap junctions.
#Question id: 557
#Unit 1. Molecules and their Interaction Relevant to Biology
The number of substrate molecules converted to product in a given unit of time by a single enzyme molecule at saturation is referred to as the:
#Question id: 24119
#General Aptitude
#Question id: 10373
#Unit 6. System Physiology – Plant
The nodulation (nod) genes are classified as common nod genes or host specific nod genes. Some statements related to such classification are given below;
a) nod A is a common nod gene and nod Q is a host specific gene
b) nod B is a common nod gene and nod C is a host specific gene
c) nod C is a common nod gene and nod H is a host specific gene
d) nod H is a common nod gene and nod P is a host specific gene
Choose the correct answer from the above statements:
#Question id: 1391
#Unit 4. Cell Communication and Cell Signaling
If an adult person has a faulty version of the human analog to ced-4 of the nematode, which of the following is most likely to result?