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TLS Online TPP Program

#Question id: 1086

What is the most likely mechanism by which testosterone functions inside a cell?

#XL - Q Biochemistry

  1. It acts as a signal receptor that activates tyrosine kinases.

  2. It binds with a receptor protein that enters the nucleus and activates expression of specific genes.

  3. It acts as a steroid signal receptor that activates ion channel proteins in the plasma membrane.

  4. It coordinates a phosphorylation cascade that reduces spermatogenesis.

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TLS Online TPP Program

#Question id: 4993

#XL - S Microbiology

If the prokaryotic flagellum developed from assemblages of proteins that originally were not involved with cell motility but with some other function instead, then the modern prokaryotic flagellum is a(n)
TLS Online TPP Program

#Question id: 676

#XL - Q Biochemistry

What would you expect about the formation of an α-helix for a segment of a protein chain that contains lysine approximately every fourth residue with all other residues being mostly hydrophobic?
TLS Online TPP Program

#Question id: 12932

#XL - S Microbiology

Why mRNA cannot be used directly in cloning?
TLS Online TPP Program

#Question id: 11758

#XL - T Zoology

In normal kidneys, which of the following is true of the osmolarity of renal tubular fluid that flows through the early distal tubule in the region of the macula densa?
TLS Online TPP Program

#Question id: 15330

#XL - S Microbiology

BCR membrane bound converted into secreted form by signal of