The nucleosome is a disc with DNA organized into 12/3 turns around the surface.

TLS Online TPP Program

#Id: 7448

#Unit 5. Developmental Biology

ACR harbours seven transmembrane domains and is embedded in the nuclear membrane of prestalk cells.

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#Id: 7449

#Unit 5. Developmental Biology

For induction of prespore differentiation and control of spore germination cAMP is produced by adenylate cyclase G (ACG)

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#Id: 7450

#Unit 5. Developmental Biology

ACG harbours two transmembrane domains & localizes to the membrane of the prespore vesicles.

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#Id: 7451

#Unit 5. Developmental Biology

During spore formation, when the prespore vesicles fuse with the plasma membrane, ACG localizes to the spore surface.

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#Id: 7452

#Unit 5. Developmental Biology

ACG act as an osmosensor, so spores formed from the acg- cells will germinate irrespective of the osmotic conditions.

TLS Online TPP Program

#Id: 7453

#Unit 5. Developmental Biology

Adenylate cyclase B (ACB) is normally expressed in prestalk cells, but is upregulated in the prespore region of acg null structures.