Explain how a hormone will trigger the signal transduction pathway in a plant.

What will be an ideal response?


1. Receptor: a molecule in the plasma membrane, cytoplasm, or nucleus will receive the signal hormone.
2. Transduction pathway: a series of relay proteins will convert the signal into one that will affect the cellular machinery.
3. Response: a change in gene expression will occur that alters the plant growth and development.

Biology & Microbiology

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The concept of a molecular clock allows a population geneticist to estimate what?

A. how quickly mutations are occurring in all species B. how long two populations of the same species have been separated C. how frequently beneficial mutations will appear in a population D. how large a population is

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Which structure(s) grow(s) just in front of animal tissues where only the Hoxc6 geneis expressed?

a. forelimbs and hindlimbs b. hindlimbs only c. ribs only d. forelimbs only e. forelimbs and ribs

Biology & Microbiology

Develop a scenario different from that in the book that demonstrates a survival benefit of each of the

following types of learning: classical conditioning, operant conditioning habituation, imprinting, and insight. What will be an ideal response?

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Explain Gleason's individualistic model describing community structure What will be an ideal response?

Biology & Microbiology