What are the phases of mitosis during which chromosomes are composed of two chromatids?
AP Biology Unit 4: Cell Communication & Cell Cycle

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Science
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10th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
From G2 of interphase through metaphase.
2.
FLASHCARD QUESTION
Front
What is paracrine signaling?
Back
Paracrine signaling involves secreting cells acting on nearby target cells by discharging a local regulator into the extracellular fluid.
3.
FLASHCARD QUESTION
Front
What is the general name for an enzyme that transfers phosphate groups from ATP to a protein?
Back
Protein kinase.
4.
FLASHCARD QUESTION
Front
What are the three stages of cell signaling from the perspective of the cell receiving the message?
Back
Signal reception, signal transduction, and cellular response.
5.
FLASHCARD QUESTION
Front
How does estrogen mediate many effects in the body?
Back
Estrogen binds to specific receptors inside many kinds of cells, each of which have different responses to its binding.
6.
FLASHCARD QUESTION
Front
What is the role of protein kinases in cell signaling?
Back
Protein kinases transfer phosphate groups from ATP to specific proteins, altering their function.
7.
FLASHCARD QUESTION
Front
Define signal transduction.
Back
Signal transduction is the process by which a cell converts an external signal into a functional response.
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