TLS Online TPP Program

#Id: 1022

#Unit 5. Developmental Biology

High levels of BMP specify the cells to become epidermis.

TLS Online TPP Program

#Id: 908

#Unit 13. Methods in Biology

Tritiated (3H) Thymidine uptake used to assess Cell Division based on radioactivity measurement by scintillation counting. 

TLS Online TPP Program

#Id: 6058

#Unit 10. Ecological Principles

 Cold Desert: In the daytime, temperatures can be high in the summer, 21–26ºC, but average around freezing, –24ºC, in the winter.

TLS Online TPP Program

#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.

TLS Online TPP Program

#Id: 4720

#Unit 13. Methods in Biology

The absorption of UV light by nucleic acids arises from n!p* and p!p* transitions of the purine (adenine, guanine) and pyrimidine (cytosine, thymine, uracil) bases that occur between 260 nm and 275 nm.