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TLS Online TPP Program

#Question id: 2110

According to the fluid mosaic model of cell membranes, phospholipids:

#XL - S Microbiology

  1. can move laterally along the plane of the membrane

  2. frequently flip-flop from one side of the membrane to the other

  3. occur in an uninterrupted bilayer, with membrane proteins restricted to the surface of the membrane

  4. have hydrophilic tails in the interior of the membrane

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TLS Online TPP Program

#Question id: 11122

#XL - S Microbiology

Phylogenetic hypotheses (such as those represented by phylogenetic trees) are strongest when
TLS Online TPP Program

#Question id: 11415

#XL - R Botany

Below is a list of various bird groups, with their typical age at maturity (in years). Which of these would you expect to have the greatest annual survival?
TLS Online TPP Program

#Question id: 11008

#XL - T Zoology

Which of the following events is associated with the first heart sound?
TLS Online TPP Program

#Question id: 11504

#XL - S Microbiology

Which organisms represent the common ancestor of all photosynthetic plastids found in eukaryotes?
TLS Online TPP Program

#Question id: 12160

#XL - R Botany

Which of these was not derived from an ancestral alpha proteobacterium?