Sequences that presumably diverged as a result of gene duplication are paralogous.

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#Id: 2054

#Unit 8. Inheritance Biology

Leber hereditary optic neuropathy (LHON)- People who have this disorder experience rapid loss of vision in both eyes, which results from the death of cells in the optic nerve.

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#Id: 4658

#Unit 13. Methods in Biology

CFSE labeling amount of fluorescence emitted is cut in half each time the cell divides.

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#Id: 10489

#Unit 4. Cell Communication and Cell Signaling

Cytotoxic T cells release granules containing the proteins perforin and granzyme-B

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#Id: 5718

#Unit 10. Ecological Principles

Phenology of plant  

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#Id: 7481

#Unit 4. Cell Communication and Cell Signaling

IgE 

Present only at very low levels in blood or extracellular fluid but is bound avidly by receptors on mast cells.Antigen binding to this cell-associated IgE triggers mast cells to release powerful chemical mediators that induce reactions such as coughing, sneezing, and vomiting.