TLS Online TPP Program

#Question id: 893


Like E.coli eukaryotic cells also contain chaperonin, which of the following in eukaryotic chapronin is incorrect?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. Eukaryotic cells contain the chaperonin TRiC, with double rings of eight nonidentical subunits

  2. TRiC proteins contain an additional segment that acts as a built-in lid, so the complex encloses a polypeptide chain and mediates protein folding without the assistance of a GroES-like cochaperone

  3. TRiC chaperonin resembles a GroES subunit, Like its bacterial TRiC operates in an ATP-dependent fashion

  4. Around 10% of eukaryotic proteins transiently interact with TRiC

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TLS Online TPP Program

#Question id: 5204

#Unit 11. Evolution and Behavior

Bioinformatics can be used to scan sequences for probable genes looking for start and stop sites for transcription and for translation, for probable splice sites, and for sequences known to be found in other known genes. Such sequences containing these elements are called

TLS Online TPP Program

#Question id: 5203

#Unit 11. Evolution and Behavior

The biggest problem with the shotgun technique is its tendency to underestimate the size of the genome. Which of the following might best account for this?

TLS Online TPP Program

#Question id: 5199

#Unit 11. Evolution and Behavior

For mapping studies of genomes, most of which were far along before 2000, the 3 -stage method was often used. Which is the usual order in which the stages were performed, assuming some overlap of the three?

TLS Online TPP Program

#Question id: 5012

#Unit 11. Evolution and Behavior

A

Silurian

I

Seed plants appear

B

Devonian

II

Gymnosperms dominant

C

Carboniferous

III

Invasion of land by primitive land plants

D

Jurassic

IV

first reptiles

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.