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TLS Online TPP Program

#Question id: 1086

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

#4. Cell Communication and Cell Signaling

  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: 10744

#10. Ecological Principles

Something that triggers a fixed action potential (FAP) is considered to be a(n) _____________.
TLS Online TPP Program

#Question id: 3256

#11. Evolution and Behavior

There are three alleles, A1, A2, and A3, whose frequencies are equal abundance. According the Hardy-Weinberg equilibrium
TLS Online TPP Program

#Question id: 2642

#2. Cellular Organization

We know that lactose has a positive impact on the activity of the lac operon. Tryptophan’s presence has a ________________
TLS Online TPP Program

#Question id: 17220

#7. System Physiology – Animal

Which of the following occurs when certain adaptive hormones are released and cause changes in the structure and chemical composition of the body?
TLS Online TPP Program

#Question id: 5335

#8. Inheritance Biology

Which of the following pedigree show mode of inheritance?