Ions, low-MW precursors of cellular macromolecules, products of intermediary metabolism, & small intracellular signaling molecules can pass from cell to cell through gap junctions.

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#Id: 4541

#Unit 12. Applied Biology

The first recombinant subunit vaccine approved for use in humans (against hepatitis B) was made in yeast.

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#Id: 8914

#Unit 2. Cellular Organization

Following securin degradation and a decrease in mitotic CDK activity, separase cleaves the Scc1 subunit, breaking the cohesin circles.

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#Id: 1606

#Unit 5. Developmental Biology

Cells passing through the more posterior portions of the primitive streak give rise to the majority of mesodermal tissues.

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#Id: 6344

#Unit 8. Inheritance Biology

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#Id: 7066

#Unit 3. Fundamental Processes

Multiple tRNAs representing the same amino acid are called isoaccepting tRNAs; because they are all recognized by the same synthetase, they are also described as its cognate tRNAs.