Calmodulin is a calcium-binding protein. A mutation that affects Ca++ binding to calmodulin is most likely to interfere with what aspect of a signal transduction pathway?
A. the flow of Ca++ ions through ion channel receptors
B. G protein activity
C. the MAP kinase cascade
D. the cellular response to the second messenger
Answer: D
Biology & Microbiology
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Answer the question using the accompanying figure. In the diagram of a root tip, the structure labeled "1" is the ____
a. quiescent center b. zone of cell division c. zone of elongation d. root cap e. zone of maturation
Biology & Microbiology
Explain how proteins that are produced in a cell correctly end up in the cytosol, the endomembrane
system, and the mitochondria.
What will be an ideal response?
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A(n) ________ is the ring of cytoplasm through a plasmodesmata
Fill in the blank with correct word.
Biology & Microbiology
Humans who have lost one copy of an autosome are called
A. bisomic. B. monoploid. C. monosomic. D. haploid. E. trisomic.
Biology & Microbiology