TLS Online TPP Program

#Question id: 28760


Pex5 is a receptor which binds with peroxisomal-targeting sequence proteins in the cytosol that protein targeted into the peroxisomal matrix by forming a multimeric complex with the Pex14 receptor located on the peroxisomal membrane. After assembly, the matrix protein dissociates from Pex5 and Pex5 is then returned to the cytosol by which process?

#Unit 2. Cellular Organization
  1. Pex5 ubiquitinylation by the membrane proteins Pex1 and Pex6, followed by ATP-dependent removal from the membrane by the AAA-ATPase proteins Pex2, Pex10, and Pex12

  2. Modification of membrane-bound Pex5 by methylation, Pex1 and Pex6 recognize methylation Pex5 and use the energy from ATP hydrolysis

  3. Pex5 ubiquitinylation by the membrane proteins Pex2, Pex10, and Pex12, followed by ATP-dependent removal from the membrane by the AAA-ATPase proteins Pex1 and Pex6
  4. Pex5 phosphorylation by the membrane proteins Pex19, followed by removal from the membrane by the proteins Pex6 and Pex7 spontaneously
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TLS Online TPP Program

#Question id: 5014

#Unit 11. Evolution and Behavior

 Following geological time period and major evolutionary event?

I. Devonian                            A. Gymnosperms dominant

II. Jurassic                               B. Amphibians diversify; first reptiles

III. Carboniferous                  C. Mammals appear

IV. Triassic                           D. Seed plants appear

TLS Online TPP Program

#Question id: 5015

#Unit 11. Evolution and Behavior

 During which of the following largest mass extinction recorded in the history of life on Earth.

TLS Online TPP Program

#Question id: 5016

#Unit 11. Evolution and Behavior

Approximately how far back in time does the fossil record extend?

TLS Online TPP Program

#Question id: 5017

#Unit 11. Evolution and Behavior

Arrange these events from earliest to most recent.

1.  emission of lava in what is now Siberia at time of Permian extinctions

2.  emission of lava that solidified at the same time as iron-bearing terrestrial rocks began to rust

3.  emission of lava that solidified at the same time as rusted iron precipitated from seawater

4.  emission of lava in what is now India at time of Cretaceous extinctions

TLS Online TPP Program

#Question id: 5018

#Unit 11. Evolution and Behavior

Which event is nearest in time to the end of the period known as snowball Earth?

TLS Online TPP Program

#Question id: 5019

#Unit 11. Evolution and Behavior

A major evolutionary episode that corresponds in time most closely with the formation of Pangaea was the