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TLS Online TPP Program

#Question id: 16092

A major means for conserving heat is:

#I Life Science/ Life Sciences Group – I-V
  1. vasodilation of coetaneous blood vessels
  2. increased metabolic rate
  3. vasoconstriction of cutaneous blood vessels
  4. enhanced sweating
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TLS Online TPP Program

#Question id: 10518

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

HC-toxin from the fungus Cochliobolus carbonum, which causes northern leaf blight disease, and inhibits
TLS Online TPP Program

#Question id: 16136

#SCPH01 Biochemistry

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: 10969

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

Which of the following will result in a transfusion reaction? Assume that the patient has never had a transfusion.
TLS Online TPP Program

#Question id: 9200

#SCPH28 | Zoology

During the inventory of bacterial genes present in the Sargasso Sea, a deep isolated area in the middle of the Atlantic Ocean, a research team concluded that at least 1,800 bacterial species were present. Based on what you might predict about the habitat structure of such an area, what kind of bacterial diversity would you expect to see in tropical coral reef waters?
TLS Online TPP Program

#Question id: 10334

#SCPH05 I Biotechnology

N2 combines with hydrogen to form ammonia under elevated temperature (about 200°C) and high pressure (about 200 atmospheres) and in the presence of a metal catalyst (usually iron). The extreme conditions are required to overcome the high activation energy of the reaction. This nitrogen fixation reaction, called