T1 cells are mIgMhi, mIgD -/lo, CD21-, CD23-, CD24+, and CD93+.  T2 cells differ from T1 cells in having higher levels of mIgD and in expressing CD21 and CD23.

TLS Online TPP Program

#Id: 8081

#Unit 13. Methods in Biology

Determination of the thermodynamics of folding and unfolding of proteins

TLS Online TPP Program

#Id: 8212

#Unit 2. Cellular Organization

TLS Online TPP Program

#Id: 1818

#Unit 10. Ecological Principles

r<0, the population decreases

r=0, the population remains constant

r>0, the population increases

TLS Online TPP Program

#Id: 2012

#Unit 8. Inheritance Biology

MONOHYBRID CROSSES           

Cross between two individuals that differ in a single characteristic

TLS Online TPP Program

#Id: 7421

#Unit 5. Developmental Biology

when flies have a mutation wherein the Antennapedia gene is expressed in the head (as well as in the thorax), legs rather than antennae grow out of the head sockets