The possibility of damage from self-reactive lymphocytes is further limited by the life span of activated lymphocytes, which is regulated by programs that induce cell death (apoptosis).

TLS Online TPP Program

#Id: 9492

#Unit 6. System Physiology – Plant

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#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.

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#Id: 716

#Unit 3. Fundamental Processes

The unit of DNA in which an individual act of replication occurs is called the replicon

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#Id: 5891

#Unit 3. Fundamental Processes

DNA binds in a large cleft composed of three domains. The “palm” domain has important conserved sequence motifs that provide the catalytic active site. The “fingers” are involved in positioning the template correctly at the active site. The “thumb” binds the DNA as it exits the enzyme, and is important in processivity.

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#Id: 2587

#Unit 13. Methods in Biology

In case of nested PCR, the target sequence is amplified using a pair of PCR primers, and a portion of the amplification product is reamplified using another pair of PCR primers complementary to the regions located immediately beyond the 3'-ends of the first pair of primers.