TLS Online TPP Program

#Id: 4681

#Unit 13. Methods in Biology

3H thymidine uptake assays were the first to be used routinely to measure cell division in lymphocyte cultures.

TLS Online TPP Program

#Id: 6263

#Unit 8. Inheritance Biology

RECESSIVE EPISTASIS

The recessive allele of one gene hides the expression of all alleles of another gene. Ex- coat color in Labrador retrievers

TLS Online TPP Program

#Id: 5487

#Unit 10. Ecological Principles

Age at first reproduction

Earlier age →  Later age 

Clutch size

Large clutch size → small clutch size

Small size →  Large size

Trade off

TLS Online TPP Program

#Id: 1780

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 1359

#Unit 4. Cell Communication and Cell Signaling

All cytokines have a similar tertiary structure consisting of four long conserved α helices folded together.