Electrical potential energy that results from the separation of charge when a proton moves across the membrane without a counterion.

TLS Online TPP Program

#Id: 6703

#Unit 3. Fundamental Processes

Splicing of pre-tRNAs is catalyzed by proteins, not by RNAs. The box H/ACA snoRNPs are involved in pseudouridylylation, and box C/D snoRNPs function in 2-O-methylations

TLS Online TPP Program

#Id: 3303

#Unit 3. Fundamental Processes

Nucleotide excision repair in E. coli is largely accomplished by four proteins: UvrA, UvrB, UvrC, and UvrD

TLS Online TPP Program

#Id: 7406

#Unit 5. Developmental Biology

The highest concentrations of Dorsal in the most ventral cell nuclei, become the mesoderm

TLS Online TPP Program

#Id: 8788

#Unit 10. Ecological Principles

Species in a community are found together because they depended on each other or simply because they have similar habitat needs.

TLS Online TPP Program

#Id: 5489

#Unit 10. Ecological Principles

Reproductive strategies

1.Semelparity

2.Iteroparity

Semelparity - When organisms reproduce only once during their life

Ex- insects, other invertebrates, and occurs in organisms such as salmon, bamboo grasses, and agave plants

Iteroparity - When organisms reproduce multiple times during their life.

It is common in most vertebrates and perennial plants, such as trees