In homologous recombination in E. coli, the protein that moves along a double-stranded DNA, unwinding the strands ahead of it and degrading them, is:

TLS Online TPP Program

#Question id: 2061

#2. Cellular Organization

Which of the following types of molecules are hydrophilic and therefore excluded from the hydrophobic portion of the phospholipid bilayer?

TLS Online TPP Program

#Question id: 2063

#2. Cellular Organization

In what way do the membranes of a eukaryotic cell vary?

TLS Online TPP Program

#Question id: 2065

#2. Cellular Organization

Which of the following are least likely to diffuse through the phospholipid bilayer of a cell membrane?

TLS Online TPP Program

#Question id: 2067

#2. Cellular Organization

Which of the following would likely diffuse through the lipid bilayer of a plasma membrane most rapidly?

TLS Online TPP Program

#Question id: 2068

#2. Cellular Organization

Which of the following molecules dramatically increases the rate of diffusion of water across cell membranes?

TLS Online TPP Program

#Question id: 2070

#2. Cellular Organization

The sodium-potassium pump is called an electrogenic pump because it: