Nondisjunction Failure of homologous chromosomes or sister chromatids to separate in meiosis or mitosis.

TLS Online TPP Program

#Id: 10420

#Unit 4. Cell Communication and Cell Signaling

Heart of the EMT are two transcription factors, 

Snail and Twist

TLS Online TPP Program

#Id: 7886

#Unit 2. Cellular Organization

Mitochondria are associated with the cytoskeleton, which determines their distribution in different cell types.

TLS Online TPP Program

#Id: 1856

#Unit 3. Fundamental Processes

Promoters that do not contain a TATA element are called TATA-less promoters. Surveys of promoter sequences suggest that 50% or more of promoters may be TATA-less.

TLS Online TPP Program

#Id: 9643

#Unit 4. Cell Communication and Cell Signaling

Molecular Handcuff 

Phosphorylation of Raf is recognize by protein 14-3-3 dimer, which locks the autoinhibitory domain in a position where it blocks and inhibits the kinase active site

TLS Online TPP Program

#Id: 6617

#Unit 7. System Physiology – Animal

At the midpoint of the cycle, between the follicular and luteal phases, ovulation occurs.