During female reproductive cycle, Estrogen stimulate rapid proliferation of the stromal cells and the epithelial cells of endometrium, before ovulation.

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#Id: 6954

#Unit 8. Inheritance Biology

Translocation Movement of genetic material between nonhomologous chromosomes or within the same chromosome.

TLS Online TPP Program

#Id: 6305

#Unit 3. Fundamental Processes

The E. coli rrn promoters are also regulated by a pair of small molecules: the initiating NTP (the iNTP) and an alarmone,  guanosine 5 -diphosphate 3-diphosphate (ppGpp). An abundance of iNTP indicates that the concentration of  nucleotides is high, and therefore it is appropriate to synthesize plenty of rRNA. 

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#Id: 2441

#Unit 3. Fundamental Processes

Rho-dependent termination sites within a transcription unit are usually masked by translating ribosomes, and therefore rho cannot act on downstream RNA polymerases. 

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#Id: 10126

#Unit 6. System Physiology – Plant

Auxin always exits cells as IAA- anions via auxin anion efflux carriers that are concentrated at the basal ends of each cell in the longitudinal pathway.

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#Id: 5215

#Unit 7. System Physiology – Animal

Plasminogen is converted to active plasmin when t-PA hydrolyzes the bond between Arg 560 and Val 561. plasmin also activated by urokinase-type plasminogen activator (u-PA).