Small organic molecules that usually make up all or part of enzyme cofactors and only very small amounts sustain growth

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#Question id: 15736

#Unit 12. Applied Biology

In shoot regeneration which attribute may have an inhibitory effect on it

TLS Online TPP Program

#Question id: 15526

#Unit 4. Cell Communication and Cell Signaling

If a thymocyte randomly generated a TCR with an affinity for MHC Class I, the TCR and CD8 would bind MHC Class I together, and generate a signal that specifically initiated a program that is 

a) silenced CD8 expression

b) silenced CD4 expression

c) induced expression of genes specific for helper T-cell lineage function

d) induced expression of genes specific for cytotoxic T-cell lineage function

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#Question id: 11119

#Unit 7. System Physiology – Animal

Which one of the following is NOT true of inspiration

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#Question id: 5256

#Unit 8. Inheritance Biology

If the experimental population of E. coli lacks an F factor or F plasmid, and if bacteriophage are excluded from the bacterial cultures, then which of these is a means by which beneficial mutations might be transmitted horizontally to other E. coli cells?

TLS Online TPP Program

#Question id: 23440

#Unit 1. Molecules and their Interaction Relevant to Biology

You are playing football in a park. When you kick the ball, it strikes and breaks the window pane of a nearby house. You would: