Stabilization of fibrin is catalyzed by activated factor XIII and Ca2

TLS Online TPP Program

#Id: 8953

#Unit 11. Evolution and Behavior

A third way that gene duplicates arise is by retrotransposition.

Here the messenger RNA from a gene is reverse-transcribed to DNA, which is then integrated into the genome.

TLS Online TPP Program

#Id: 6455

#Unit 3. Fundamental Processes

Eukaryotic nuclei contain RNA polymerase I, RNA polymerase II, and RNA polymerase III can be separated by using DEAE-Sephadex ion-exchange chromatography

TLS Online TPP Program

#Id: 6066

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 8180

#Unit 2. Cellular Organization

Peroxisomes carry out oxidation reactions leading to the production of hydrogen peroxide.

TLS Online TPP Program

#Id: 6862

#Unit 3. Fundamental Processes

Some of the regions in the eye lack color, whereas others are red. This is because the white gene (required to develop red pigment) was inactivated by adjacent heterochromatin in some cells, but remained active in others.