Populations of some species are prone to extinction for two reasons

1. The landscapes they live in are patchy (making dispersal between populations difficult).

2. Environmental conditions often change in a rapid and unpredictable manner.

TLS Online TPP Program

#Id: 2179

#Unit 11. Evolution and Behavior

Genetic drift and directional selection will eventually result in fixation of allele.

TLS Online TPP Program

#Id: 6030

#Unit 3. Fundamental Processes

The exonuclease FEN1 removes the RNA primers of Okazaki fragments. The complex of DNA polymerase d and FEN1 carries out the same type of nick translation that E. coli DNA polymerase I carries out during Okazaki fragment maturation

TLS Online TPP Program

#Id: 8540

#Unit 2. Cellular Organization

Dynein-related transport requires dynactin, that links dynein to its cargo

TLS Online TPP Program

#Id: 2112

#Unit 8. Inheritance Biology

Pseudodominance- Recessive allele owing to a deletion on the homologous chromosome.

TLS Online TPP Program

#Id: 8882

#Unit 2. Cellular Organization

The Aurora kinase family members Aurora A and Aurora B play key roles in mitotic spindle formation and in ensuring that chromosomes attach correctly to the mitotic spindle so that they are segregated accurately during mitosis.