The MCM2-7 proteins form a six-member ring-shaped complex around DNA. MCM2,3,5 are regulatory, while MCM4,6,7 have the helicase activity.

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#Id: 3535

#Unit 2. Cellular Organization

Mitochondrial genomes have genes encoding (mostly complex I–IV) proteins, rRNAs, and tRNAs

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#Id: 3055

#Unit 10. Ecological Principles

The number of species should increase with increasing island size. This is also known as the species-area hypothesis.

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#Id: 1547

#Unit 2. Cellular Organization

Taxol, 

A plant alkaloid from the Pacific yew tree

Binds microtubules and stabilizes them against depolymerization

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#Id: 5661

#Unit 7. System Physiology – Animal

The scala media, is continuous with the membranous labyrinth and does not communicate with the other two scalae

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#Id: 4607

#Unit 13. Methods in Biology

(CFSE) or carboxyfluorescein diacetate succinimidyl ester (CFDASE) is nontoxic to cells hence retained till many cycles