TLS Online TPP Program

#Id: 1971

#Unit 10. Ecological Principles

The number alive during an age class can be estimated by the relationship:

TLS Online TPP Program

#Id: 2496

#Unit 13. Methods in Biology

.In the Native (Buffer) Gels electrophoresis SDS is absent, and the proteins are not denatured prior to loading. Since all the proteins in the sample being analyzed carry their native charge at the pH of the gel (normally pH 8.7), proteins separate according to their different electrophoretic mobilities and the sieving effects of the gel.

TLS Online TPP Program

#Id: 2301

#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).

TLS Online TPP Program

#Id: 2515

#Unit 13. Methods in Biology

Pulsed-Field Gel Electrophoresis involves electrophoresis in agarose, where two electric fi elds are applied alternately at different angles for defined time periods (e.g. 60 s)

TLS Online TPP Program

#Id: 7593

#Unit 5. Developmental Biology

The capacitated sperm are also able to detect and respond to picomolar amounts of the hormone progesterone, which is secreted by the cumulus cells surrounding the egg