When an ethidium ion intercalates between two base pairs, it causes the DNA to unwind by 260, reducing the normal rotation per base pair from 360 to 100. In other words, ethidium decreases the twist of DNA.

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#Id: 10376

#Unit 4. Cell Communication and Cell Signaling

MHC molecules in mouse

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#Id: 964

#Unit 5. Developmental Biology

In the amphibian embryo, C3a functions as a short-range chemoattractant to guide epiboly in ectodermal cells.

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#Id: 9753

#Unit 6. System Physiology – Plant

Mp10 and Mp42 are effector produced by aphid Myzus persicae.

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#Id: 9141

#Unit 10. Ecological Principles

Mafia hypothesis – In Brood parasitism

Cuckoos or cowbirds check their host’s nests and destroy all eggs if their owner is not present. If the parasite egg has been removed, they destroy the host’s nest and kill or injure the nestlings.

TLS Online TPP Program

#Id: 1386

#Unit 4. Cell Communication and Cell Signaling

The length of the myosin II neck domain determines the rate of movement.