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TLS Online TPP Program

#Question id: 2110

According to the fluid mosaic model of cell membranes, phospholipids:

#SCPH06 I Botany

  1. can move laterally along the plane of the membrane

  2. frequently flip-flop from one side of the membrane to the other

  3. occur in an uninterrupted bilayer, with membrane proteins restricted to the surface of the membrane

  4. have hydrophilic tails in the interior of the membrane

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TLS Online TPP Program

#Question id: 372

#SCPH01 Biochemistry

Carbon dioxide in the atmosphere dissolves with the raindrops. The pH of raindrops is ________.
TLS Online TPP Program

#Question id: 13109

#SCPH06 I Botany

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.
 

 which number of repeats did Baby C inherit from his mother?
TLS Online TPP Program

#Question id: 1599

#SCPH01 Biochemistry

Name the class of MHC which is recognized by CD4 TH cell.
TLS Online TPP Program

#Question id: 344

#SCPH01 Biochemistry

The partial negative charge at one end of a water molecule is attracted to the partial positive charge of another water molecule. What is this attraction called?
TLS Online TPP Program

#Question id: 1689

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

The intermolecular forces that contribute to the interaction between antibody and antigen: