Outer membrane of gram negative provides barrier to certain antibiotics, lysozyme, detergents, heavy metals, bile salts, etc.

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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

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#Id: 6869

#Unit 3. Fundamental Processes

Heterochromatin formation at telomeres and silent mating-type loci in yeast relies on an overlapping set of genes known as silent information regulators (SIR genes).

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#Id: 8238

#Unit 10. Ecological Principles

Cumulative finite rate of increase

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#Id: 5447

#Unit 7. System Physiology – Animal

All-or-none action potentials

the minimal intensity of stimulating current (threshold intensity) that, acting for a given duration, will just produce an action potential. The thresholdintensity varies with the duration; with weak stimuli it is long, and with strong stimuli it is short

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#Id: 1053

#Unit 5. Developmental Biology

Hox11 paralogues specify the zeugopod