Sigma factor reduces the affinity for sequence independent binding and confers specificity for promoter.

TLS Online TPP Program

#Id: 1196

#Unit 7. System Physiology – Animal

FSH and LH stimulate sex hormone synthesis by the activation of the cyclic adenosine monophosphate second messenger system.

TLS Online TPP Program

#Id: 1197

#Unit 7. System Physiology – Animal

Granulosa cells have FSH receptors Theca cells have LH receptors

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#Id: 1198

#Unit 7. System Physiology – Animal

FSH stimulates aromatase in the granulosa cells

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#Id: 1199

#Unit 7. System Physiology – Animal

LH stimulates cholesterol desmolase in the theca cells

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#Id: 1200

#Unit 7. System Physiology – Animal

In the granulosa cells,

All the androgens and much of the progesterone are converted into estrogens by the enzyme aromatase

TLS Online TPP Program

#Id: 1201

#Unit 7. System Physiology – Animal

Theca cells synthesize and secrete progesterone.