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#Question id: 28215
#Unit 5. Developmental Biology
In the frog (Xenopus laevis) a gradient of the paracrine factor activin, which of the following observation is correct at the lower concentrations of activin ?
TLS Online TPP Program
#Question id: 15478
#Unit 12. Applied Biology
Escherichia coli preferentially utilizes glucose by preventing the uptake of lactose and switching off transcription of the lac operon. This mechanism is known as
TLS Online TPP Program
#Question id: 1971
#Unit 4. Cell Communication and Cell Signaling
If a newborn were accidentally given a drug that destroyed the thymus, what would most likely happen?
TLS Online TPP Program
#Question id: 1750
#Unit 4. Cell Communication and Cell Signaling
IFNγ and TNF (TNFα) can act synergistically:
TLS Online TPP Program
#Question id: 1477
#Unit 4. Cell Communication and Cell Signaling
The effector proteases in the apoptotic pathway, the caspases, are so named because