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TLS Online TPP Program

#Question id: 320

The aggregation of nonpolar molecules or groups in water is thermodynamically due to the

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. increased entropy of the nonpolar molecules when they associate.

  2. decreased enthalpy of the system.

  3. increased entropy of the water molecules.

  4. very strong van der Waals forces among the nonpolar molecules or groups.

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TLS Online TPP Program

#Question id: 3816

#Unit 3. Fundamental Processes

The mechanism of DNA replication is studied in an E. coli replication fork. Which is a characteristic of an E. coli replication fork and a eukaryotic replication fork?
TLS Online TPP Program

#Question id: 27082

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the incorrect statement regarding β -turns
TLS Online TPP Program

#Question id: 15183

#Unit 13. Methods in Biology

When in a gel more Joule heat is produced than can be dissipated, the temperature in the middle of the gel is higher than at the lateral edges. This causes higher mobility of the ions in the center, resulting in an uneven distribution of the zones. The zones bend up at the two lateral sides, causing
TLS Online TPP Program

#Question id: 2453

#Unit 2. Cellular Organization

Keratins

a. are found in the nucleus.                            

b. are typically expressed in neuronal cells.

c. contain an acidic and a basic subunit.                    

d. function in cell adhesion.

e. are the major proteins of hair and horns.
TLS Online TPP Program

#Question id: 23563

#Unit 13. Methods in Biology

________ is the direct uptake of foreign DNA by a host cell.