TLS Online TPP Program

#Id: 2854

#Unit 13. Methods in Biology

In proteins, there are three types of chromophores relevant for UV/Vis spectroscopy:

peptide bonds (amide bond);

certain amino acid side chains (mainly tryptophan and tyrosine); and

certain prosthetic groups and coenzymes (e.g. porphyrine groups such as in haem).

TLS Online TPP Program

#Id: 7575

#Unit 5. Developmental Biology

The capacities the sperm gain are those for:

recognizing the cues that will guide them to the egg

undergoing the acrosome reaction

fusing with the egg cell membrane

TLS Online TPP Program

#Id: 109

#Unit 5. Developmental Biology

Cells can progress from totipotent to pluripotent to determined.   

TLS Online TPP Program

#Id: 10449

#Unit 4. Cell Communication and Cell Signaling

Human papillomavirus encodes two oncogenic proteins: E6 -inhibits p53

E7- inhibits RB

TLS Online TPP Program

#Id: 9539

#Unit 11. Evolution and Behavior

Before Darwin - Christians interpreted “special creation”