Potency, commitment, specification, induction, competence, determination and differentiation; morphogenetic gradients; cell fate and cell lineages; stem cells; genomic equivalence and the cytoplasmic determinants; imprinting; mutants and transgenics in analysis of development

TLS Online TPP Program

#Id: 10003

#Unit 4. Cell Communication and Cell Signaling

Mice homozygous for a null allele of dhh exhibit defective spermatogenesis

TLS Online TPP Program

#Id: 7231

#Unit 5. Developmental Biology

Regulatory T cells inactivate traditional T cells

TLS Online TPP Program

#Id: 7583

#Unit 5. Developmental Biology

Negative membrane potential may allow calcium channels to be opened and permit calcium to enter the sperm. 

TLS Online TPP Program

#Id: 6940

#Unit 8. Inheritance Biology

An inversion may break a gene into two parts, with one part moving to a new location and destroying the function of that gene.

TLS Online TPP Program

#Id: 6330

#Unit 8. Inheritance Biology

Pseudoautosomal 

Region Small region of the X and Y chromosomes that contains homologous gene sequences.