DELLA degradation results in the release and activation of phytochrome interacting factor (PIF) transcription factors, such as PIF3 and PIF4, as well as other bHLH transcription factors

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#Id: 7892

#Unit 2. Cellular Organization

mtDNA is located in the mitochondrial matrix, and in the rapidly growing cells, mtDNA is often seen in regions devoid of densely stacked cristae.

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#Id: 2804

#Unit 13. Methods in Biology

In NPLC solvents form an elutropic series based on their polarity. Such a series in

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#Id: 8751

#Unit 1. Molecules and their Interaction Relevant to Biology

The protein p27 is intrinsically disordered. It wraps around and inhibits the action of several enzymes called protein kinases that facilitate cell division. 

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#Id: 4006

#Unit 7. System Physiology – Animal

The SA node exhibits automaticity; it can spontaneously generate action potentials without neural input.

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#Id: 9436

#Unit 11. Evolution and Behavior

Several hypotheses explain the existence of monogamy.

1. Mate-guarding hypothesis, a male stays with a female to protect her from being fertilized by other males.

2. The male assistance hypothesis maintains that males remain with females to help them rear their offspring.

3. The female-enforced monogamy, females stop their male partners from being polygynous.