The reaction centre chlorophyll is transiently in an oxidized state after losing an electron and before being re-reduced by its electron donor, what characteristics has been shown by chlorophylls in an oxidized state?

TLS Online TPP Program

#Question id: 28849

#Unit 2. Cellular Organization

Select the correct combination of Kinesin-13?

a) It is ATPases

b) It is end-binding Proteins 

c) It is a member of the kinesin motor protein superfamily

d) It controlling the activities of proteins during the cell cycle

e) It involves to enhancing the frequency of catastrophe activity

TLS Online TPP Program

#Question id: 4501

#Unit 3. Fundamental Processes

According to Models of termination: torpedo and allosteric, which one is now the favored and why;

A. The Rat1 enzyme is very processive and quickly degrades the RNA in a 5’ -to-3’ direction, until it catches up to the still-transcribing polymerase from which the RNA is being spewed.

B. Termination depends on a conformational change in the elongating polymerase that reduces the processivity of the enzyme leading to spontaneous termination soon afterward.

TLS Online TPP Program

#Question id: 31143

#Unit 2. Cellular Organization

Which of the following protein couples a cycle of GTP binding and hydrolysis to the formation and then disassembly of the COPII coat?

TLS Online TPP Program

#Question id: 320

#Unit 1. Molecules and their Interaction Relevant to Biology

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

TLS Online TPP Program

#Question id: 31405

#Unit 5. Developmental Biology

The acquisition of a given cell identity based on its position or, more specifically, on the interactions that cell has with the other cells, phenomena known as: