AB cell in isolation makes only a small fraction of the cell types it would normally make.

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#Id: 9485

#Unit 6. System Physiology – Plant

Plant pathogens are divided into three groups

Biotrophs derive energy from living cells, they are found on or in living plants, can have very complex nutrient requirements and do not kill host plants rapidly;

Necrotrophs derive energy from killed cells; they invade and kill plant tissue rapidly and then live saprotrophically on the dead remains;

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#Id: 5924

#Unit 3. Fundamental Processes

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#Id: 7205

#Unit 5. Developmental Biology

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#Id: 574

#Unit 2. Cellular Organization

OC are constitutive because repressor protein is unable to bind; this allows RNA polymerase to have unrestrained access to the promoter. 

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#Id: 2026

#Unit 8. Inheritance Biology

Plasmid Small, circular DNA molecule found in bacterial cells that is capable of replicating independently from the bacterial chromosome.