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TLS Online TPP Program

#Question id: 1120

A mutation that knocks out the GTPase activity of a G protein would have what effect on a cell?

#SCPH06 I Botany

  1. The concentration of available GTP would decrease.

  2. The number of G proteins in the cell would increase.

  3. The G protein would be inactivated by a G protein-coupled receptor/signal molecule complex.

  4. The G protein would always be active.

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TLS Online TPP Program

#Question id: 3011

#I Life Science/ Life Sciences Group – I-V

Bacteria that may form endospores include
TLS Online TPP Program

#Question id: 108

#SCPH05 I Biotechnology

Like plasmologens, sphingolipids are found in relative abundance in
TLS Online TPP Program

#Question id: 18374

#SCPH05 I Biotechnology

Polycyclic aromatic hydrocarbons in the environment are of concern because they are potential
TLS Online TPP Program

#Question id: 16136

#SCPH06 I Botany

You obtain 6 BACs (of known order, as shown below) and 7 STSs (of unknown order) that derive from a region of mouse chromosome 16 whose genomic sequence has not yet been finished.   
 
By PCR (using 20-bp primers at either end of each STS), you test each of the 6 BACs for the presence (+) or absence (-) of each of the 7 STSs. You obtain the following results:
 
Is there a second STS at which you would like to sequence PCR products obtained using BACs as templates? If so, which BACs would you test in this way, and what sequencing results might you predict for each of the BACs tested?
TLS Online TPP Program

#Question id: 19756

#SCPH05 I Biotechnology

Who was proposed valence-bond theory ?