The transcription factors encoded by the pair-rule genes activate the segment polarity genes, whose mRNA and protein products divide the embryo into 14-segment-wide units, establishing the periodicity of the embryo. 

TLS Online TPP Program

#Id: 1678

#Unit 4. Cell Communication and Cell Signaling

Multiple gene segments exist at heavy (V, D, and J) and light-chain (V and J) loci.

TLS Online TPP Program

#Id: 2165

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 6920

#Unit 8. Inheritance Biology

Deletion include,
Terminal deletion

ntercalary/interstitial deletion 

Microdeletion

TLS Online TPP Program

#Id: 10452

#Unit 4. Cell Communication and Cell Signaling

Philadelphia chromosome generated by a translocation

between chromosomes 22 and 9

TLS Online TPP Program

#Id: 2511

#Unit 13. Methods in Biology

Glycoproteins have traditionally been detected on protein gels by use of the periodic acid–Schiff ( PAS) stain