Pluripotency A stem cell that has the potential to differentiate into any of three germ layers(endoderm , mesoderm & ectoderm). Eg-all embryonic cells

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#Unit 5. Developmental Biology

Conditional specification is the process by which cells achieve their respective fates by interacting with other cells.

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#Id: 6052

#Unit 10. Ecological Principles

Tropical Grassland or Savanna 

These are hot, tropical areas, averaging 24–29ºC with a low or seasonal rainfall of between 70 and 130 cm per year.

As with grasslands, the predominant mammals are the grazers. 

 In Africa, the large herds of grazing animals provide food for many different kinds of large carnivores (lions, hyenas, leopards). 

The world’s greatest assemblages of large mammals occur in the savanna biome.

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#Id: 4566

#Unit 8. Inheritance Biology

DOMINANT EPISTASIS

In dominant epistasis, however, only a single copy of an allele is required to inhibit the expression of an allele at a different locus.

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#Id: 1138

#Unit 2. Cellular Organization

Inhibitory Proteins in Cell Cycle-

Sic1 - Binds and inhibits S phase CDKs

CKIs p27, p57, and p21- Bind and inhibit CDKs

INK4 - Binds and inhibits G1 CDKs

Rb - Binds E2Fs

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#Id: 9631

#Unit 4. Cell Communication and Cell Signaling

Monomeric Ras protein 

(∼170 amino acids) belongs to the GTPase superfamily of

intracellular switch proteins