If the middle slice is too narrow, there is no discernible morphogen gradient within it, and regeneration is abnormal.

TLS Online TPP Program

#Id: 7228

#Unit 5. Developmental Biology

Superantigens

Viral or bacterial proteins that bind simultaneously to the Vβ domain of a T-cell receptor and to the α chain of a Class II MHC molecule

TLS Online TPP Program

#Id: 2554

#Unit 13. Methods in Biology

Fluorescent probes are commonly used to detect rapid biochemical changes in single living cells

TLS Online TPP Program

#Id: 7404

#Unit 5. Developmental Biology

Dorsal protein enters the nucleus and ventralizes the cell

TLS Online TPP Program

#Id: 6316

#Unit 3. Fundamental Processes

Readthrough transcripts refer to the fraction of transcripts that are not stopped by the terminator.  Furthermore, the termination event can be prevented by specific ancillary factors that interact with RNA and/or RNA polymerase, a situation referred to as antitermination.

TLS Online TPP Program

#Id: 4820

#Unit 13. Methods in Biology

The confidence level represents the proportion (frequency) of acceptable confidence intervals that contain the true value of the unknown parameter.