TLS Online TPP Program

#Question id: 8926


Sponges and cnidarians are among the fossilized animals found in both the Ediacara Hills and the Burgess Shale from the Rocky Mountains of British Colombia. This observation requires that

#SCPH28 | Zoology
  1. ancestral sponges and cnidarians had formerly been terrestrial animals.
  2. North America and Australia were united to each other about 550 million years ago (mya).
  3. land that now comprises the Ediacara Hills and the Rocky Mountains was underwater about 550 million years ago.
  4. only sponges and cnidarians existed at the time the sediments were deposited.
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TLS Online TPP Program

#Question id: 1087

#SCPH06 I Botany

Scientists have found that extracellular matrix components may induce specific gene expression in embryonic tissues such as the liver and testes. For this to happen, there must be direct communication between the extracellular matrix and the developing cells. Which kind of transmembrane protein would most likely be involved in this kind of induction?

TLS Online TPP Program

#Question id: 1087

#SCPH28 | Zoology

Scientists have found that extracellular matrix components may induce specific gene expression in embryonic tissues such as the liver and testes. For this to happen, there must be direct communication between the extracellular matrix and the developing cells. Which kind of transmembrane protein would most likely be involved in this kind of induction?

TLS Online TPP Program

#Question id: 1088

#SCPH01 Biochemistry

One of the major categories of receptors in the plasma membrane functions by forming dimers, adding phosphate groups, and then activating relay proteins. Which type does this?

TLS Online TPP Program

#Question id: 1088

#SCPH06 I Botany

One of the major categories of receptors in the plasma membrane functions by forming dimers, adding phosphate groups, and then activating relay proteins. Which type does this?

TLS Online TPP Program

#Question id: 1088

#SCPH28 | Zoology

One of the major categories of receptors in the plasma membrane functions by forming dimers, adding phosphate groups, and then activating relay proteins. Which type does this?

TLS Online TPP Program

#Question id: 1089

#SCPH01 Biochemistry

Which of the following statements describes a likely effect of a drug designed that inhibits the cellular response to testosterone?