When Rb is mutant: |the generic intercellular pathway is activated. CDK-G1 cyclin is activated and ubiquitinates Rb CDK-G1 cyclin is inactivated and Rb becomes active active Rb protein is phosphorylated by CDK-G1 cyclin and becomes inactive inactive or missing Rb protein is phosphorylated and becomes active active Rb protein becomes a transcription factor and activates genes inactive or missing Rb protein becomes a transcription factor and represses genes active Rb protein inactivates transcription factors and represses genes inactive or missing Rb protein releases transcription factors that activate genes

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Reproductive system infection

The biological process through which parents produce new children is called reproduction. A reproductive system is a group of internal and external organs that collaborate to allow males and females to reproduce. Many experts believe that the reproductive system is one of the most important systems in the body due to its crucial function in the survival of the species. Among the body's basic systems, the reproductive tract is the one that differs the most between sexes, and it is also the only one that does not operate until puberty.