Bombay phenotype

TLS Online TPP Program

#Id: 9726

#Unit 6. System Physiology – Plant

Hemlock (Cicuta sp.) produces cicutoxin, a polyacetylene that prolongs the repolarization of neuronal action potentials.

TLS Online TPP Program

#Id: 2338

#Unit 3. Fundamental Processes

In E. coli, rRNA synthesis from the seven rRNA operons responds to cellular growth rate and to changes in the availability of crucial nutrients, particularly amino acids. The regulation coordinated with amino acid concentrations is known as the stringent response.

TLS Online TPP Program

#Id: 5913

#Unit 3. Fundamental Processes

DnaG primase associates transiently with the replication complex, and typically synthesizes a 10-base primer. Primers start with the sequence pppAG positioned opposite the sequence 3’–GTC-5’ in the template.

TLS Online TPP Program

#Id: 5647

#Unit 7. System Physiology – Animal

The hyperpolarization of rod cells:

Reduces the release of glutamate

Generates a signal in the bipolar cells

Leads to AP in ganglion cells 

TLS Online TPP Program

#Id: 5955

#Unit 10. Ecological Principles

Carnivore assimilation efficiencies are often about 80%, because carnivores consume largely soft tissue,  Assimilation efficiencies for herbivores average only about 5–20% 

Assimilation efficiencies of aquatic herbivores have higher  than terrestrial herbivores.