The sequence AAUAAA (hexamer) is a signal for cleavage to generate a 3’ end of mRNA that is polyadenylated.

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#Id: 4034

#Unit 7. System Physiology – Animal

The rate of spontaneous discharge increases Norepinephrine secreted by the sympathetic endings binds to β1 receptors

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#Id: 6119

#Unit 3. Fundamental Processes

Mutations in MutS/L components can lead to hereditary nonpolyposis colorectal cancer (HNPCC). A characteristic feature of HNPCC is microsatellite instability, in which the lengths (numbers of repeats) of microsatellite sequences change rapidly in the tumor cells due to the loss of the mismatch repair system to correct replication slippage in these sequences.

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#Id: 1774

#Unit 4. Cell Communication and Cell Signaling

TREG can be generated both naturally, in the thymus (nTREG cells), and after induction by antigen in the periphery (iTREG cells).

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#Id: 2558

#Unit 13. Methods in Biology

This protein, from the bioluminescent jellyfish  Aequorea victoria, fluoresces with a peak wavelength of 508 nm (green light) when irradiated by ultraviolet or blue light (optimally 400 nm).

TLS Online TPP Program

#Id: 8925

#Unit 2. Cellular Organization

The protein kinases DNA-PK, ATM, and ATR are activated at sites of damaged DNA