CD23a is found on activated B cells, whereas CD23b is induced on various cell types by the cytokine IL-4.

TLS Online TPP Program

#Id: 3108

#Unit 3. Fundamental Processes

replication fork is initiated at the origin and then moves sequentially along DNA

TLS Online TPP Program

#Id: 6231

#Unit 8. Inheritance Biology

CODOMINANCE

Type of allelic interaction in which the heterozygote simultaneously expresses traits of both homozygotes.

TLS Online TPP Program

#Id: 9919

#Unit 4. Cell Communication and Cell Signaling

Mechanisms of humoral and cell-mediated immune responses

TLS Online TPP Program

#Id: 7074

#Unit 3. Fundamental Processes

 Valyl-tRNA synthetase can sterically exclude isoleucine from its catalytic pocket because isoleucine is larger than valine. In contrast, valine should slip easily into the catalytic pocket of the isoleucyl-tRNA synthetase. Although both amino acids will fit into the isoleucyl-tRNA synthetase amino acid–binding site, interactions with the extra bonding with tyrosine’s OH group. Since no other amino acid resembles tyrosine, the enzyme can do without an editing function

TLS Online TPP Program

#Id: 682

#Unit 3. Fundamental Processes

Cdc13 binds to the single-stranded telomere repeat DNA and is involved in telomerase recruitment.