During stem cell regulation extracellular mechanisms leading to intracellular changes that regulate stem cell behaviour. Which of the following is not consider as extracellular mechanisms for stem cell regulation?

TLS Online TPP Program

#Question id: 3985

#Unit 3. Fundamental Processes

The binding of CRP (cAMP receptor protein of E. coli) to DNA in the lac operon:

TLS Online TPP Program

#Question id: 11211

#Unit 7. System Physiology – Animal

The following steps refer to various stages in transmission at a chemical synapse.

1. Neurotransmitter binds with receptors associated with the postsynaptic membrane.

2. Calcium ions rush into neuron's cytoplasm.

3. An action potential depolarizes the membrane of the presynaptic axon terminal.

4. The ligand-gated ion channels open.

5. The synaptic vesicles release neurotransmitter into the synaptic cleft.

Which sequence of events is correct?

TLS Online TPP Program

#Question id: 15707

#Unit 12. Applied Biology

Mature and certain differentiated e.g., parenchyma and often colenchyma cells undergo changes to become meristematic, this is called 

TLS Online TPP Program

#Question id: 28874

#Unit 4. Cell Communication and Cell Signaling

Wnt is a combination of which proteins?

TLS Online TPP Program

#Question id: 19240

#Unit 12. Applied Biology

What are the effects of these antibiotics on plant cells?

1. Inhibit greening

2. Inhibit faster proliferation

3. Lowers shoot formation

Which of the following above statements are correct?