Cryoelectron microscopy allows examination of hydrated, unfixed, and unstained specimens in the TEM by maintaining them at -196oC (liquid nitrogen).

TLS Online TPP Program

#Id: 2244

#Unit 11. Evolution and Behavior

When a nonfunctioning duplicate is fixed in the population, or a functioning gene becomes nonfunctional, the result is a genetic skeleton called a pseudogene.

Deletions are important in shaping the genome.

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#Id: 7847

#Unit 1. Molecules and their Interaction Relevant to Biology

The two diastereomers of glucose in its "pyranose" form are called the alpha (a) and beta (B) isomers, which differ in the orientation of the OH at C-1

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#Id: 845

#Unit 2. Cellular Organization

Difference between necrotrophy, biotrophy and hemibiotrophy

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#Id: 7451

#Unit 5. Developmental Biology

During spore formation, when the prespore vesicles fuse with the plasma membrane, ACG localizes to the spore surface.

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#Id: 758

#Unit 3. Fundamental Processes

The overall reaction rate for the bacterial RNA polymerase can be as fast as 40–50 nucleotides/second at 37°C for most transcripts; this is about the same as the rate of translation (15 amino acids/sec), but much slower than the rate of DNA replication (800 bp/sec).