Loss of the zeta population 

Epidermal cell types do not fully regenerate in the absence of zeta neoblasts, the remaining neoblasts (likely sigma) and their derived cell types are unaffected.

TLS Online TPP Program

#Id: 4675

#Unit 13. Methods in Biology

The interaction between antibody and a particulate antigen results in visible clumping called agglutination. Antibodies that produce such reactions are called agglutinins. 

TLS Online TPP Program

#Id: 6380

#Unit 2. Cellular Organization

OC are constitutive because repressor protein is unable to bind; this allows RNA polymerase to have unrestrained access to the promoter.  The Oc mutations are cis-acting/cis dominant, because they affect only the contiguous set of structural genes.

TLS Online TPP Program

#Id: 8486

#Unit 1. Molecules and their Interaction Relevant to Biology

All three kinds of bonds (N-Ca, Ca-Co, and the Co-N peptide bond) are single bonds.

TLS Online TPP Program

#Id: 10182

#Unit 6. System Physiology – Plant

GA3-stimulated a-amylase production by GA-MYB for starch mobilisation in seeds

TLS Online TPP Program

#Id: 1590

#Unit 5. Developmental Biology

Primitive groove is homologous to the amphibian blastopore