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TLS Online TPP Program

#Question id: 4141

Bacterial ribosomes:

#XL - T Zoology

  1. bind tightly to specific regions of DNA, forming polysomes.

  2. contain at least one catalytic RNA molecule (ribozyme).

  3. contain three species of RNA and five different proteins.

  4. require puromycin for normal function.

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TLS Online TPP Program

#Question id: 1672

#XL - Q Biochemistry

Using only random VDJ recombination, from 40 V, 23 D, and 6 J gene segments, what are the number of possible variable regions of an antigen receptor molecule?
TLS Online TPP Program

#Question id: 16485

#XL - T Zoology

A modification of the original grid method is widely used to study the 
TLS Online TPP Program

#Question id: 2210

#XL - Q Biochemistry

Which of these is a general feature of the lipid bilayer in all biological membranes?
TLS Online TPP Program

#Question id: 2149

#XL - S Microbiology

A ligand-gated ion channel (such as the nicotinic acetylcholine receptor) is:
TLS Online TPP Program

#Question id: 1077

#XL - T Zoology

Would ID50 and LD50 necessarily be the same for a given virus? Why or why not?