Van Valen law -  he found a surprising result: rather straight curves, implying that the probability of extinction is roughly constant.

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#Id: 7439

#Unit 5. Developmental Biology

Fruiting structure consists of a tapered column of stalk cells that carries a spherical mass of spores aloft.

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#Id: 4483

#Unit 13. Methods in Biology

Darkfield microscopy is used for very thin spirochetes, such as Treponema pallidum, the causative agent of syphilis.

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#Id: 10557

#Unit 4. Cell Communication and Cell Signaling

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#Id: 6314

#Unit 3. Fundamental Processes

There are 1100 sequences terminators in the E. coli genome

Intrinsic terminators include palindromic regions that form hairpins varying in length from 7 to 20 bp. The stem-loop structure includes a G-C–rich region and is followed by a run of 7U residues.

TLS Online TPP Program

#Id: 10395

#Unit 4. Cell Communication and Cell Signaling

Leukemias 

a class of sarcomas, grow as individual cells in the blood