Many of the genes that determine floral organ identity are MADS box genes, including AG, PI, and AP3 genes of Arabidopsis

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#Id: 6586

#Unit 7. System Physiology – Animal

Hormonal factors that stimulate spermatogenesis:

Testosterone

Luteinizing hormone

Follicle-stimulating hormone

Estrogens

Growth hormone

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#Id: 8444

#Unit 1. Molecules and their Interaction Relevant to Biology

Both the pi helix and the 310 helix occur rarely and usually only at the ends of a helices or as single-tum helices. They are not energetically favorable, since the backbone atoms are too tightly packed in the 310 helix and so loosely packed in the n helix that there is a hole through the middle. 

Only in the a helix are the backbone atoms properly packed to provide a stable structure.

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#Id: 9676

#Unit 4. Cell Communication and Cell Signaling

Phosphorylation by the mTORC2 kinase complex, of a second serine on

PKB that is not in the activation loop is necessary for maximal PKB activity

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#Id: 6990

#Unit 5. Developmental Biology

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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#Id: 5304

#Unit 7. System Physiology – Animal

Atrial systole 

ventricle is relaxed, & because the AV valve is open, the ventricle is filling with blood from the atrium, even prior to atrial systole.