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TLS Online TPP Program

#Id: 6590

Follicle-stimulating hormone, secreted by the anterior pituitary gland, stimulates the Sertoli cells; stimulates, the process of spermiogenesis





#Unit 7. System Physiology – Animal #Male reproductive physiology #Part B Pointers
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TLS Online TPP Program

#Id: 5099

#Unit 6. System Physiology – Plant

MYB-related protein, now known as circadian clock associated 1 (CCA1), also plays a role in the circadian regulation of LHCB gene expression.
TLS Online TPP Program

#Id: 5100

#Unit 6. System Physiology – Plant

Second but distinct MYB-related protein, late elongated hypocotyl (LHY), has also been identified as a potential clock gene.
TLS Online TPP Program

#Id: 5101

#Unit 6. System Physiology – Plant

When the CCA1 gene is mutated so that no functional protein is produced, circadian and phytochrome regulation of four genes, including LHCB, is affected.
TLS Online TPP Program

#Id: 5102

#Unit 6. System Physiology – Plant

A protein kinase (CK2)CKB3 can interact with and phosphorylate CCA1, which is a multisubunit protein with serine/threonine kinase activity.
TLS Online TPP Program

#Id: 5103

#Unit 6. System Physiology – Plant

Phytochrome interacting factors (PIFs) act as negative regulators of photomorphogenesis.
TLS Online TPP Program

#Id: 5104

#Unit 6. System Physiology – Plant

PIFs promote etiolated development in the dark (skotomorphogenesis) primarily by serving as transcriptional activators of dark induced genes.