Mutations are also caused by compounds that substitute for normal bases (base analogs) or slip between the bases (intercalating agents) to cause errors in replication. 

TLS Online TPP Program

#Id: 1216

#Unit 7. System Physiology – Animal

The chief cells of the parathyroid glands synthesize and secrete PTH.

TLS Online TPP Program

#Id: 2626

#Unit 13. Methods in Biology

Steps of nick translation- 

Low concentrations of DNase I are used to make occasional single-strand nicks in the double-stranded DNA that is intended as the gene probe.

DNA polymerase then fills in the nicks, using an appropriate dNTP, at the same time making a new nick to the 3′ side of the previous one.

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#Id: 7709

#Unit 1. Molecules and their Interaction Relevant to Biology

                              Type II β turn

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#Id: 8648

#Unit 2. Cellular Organization

During exit from mitosis and G1, 

Cdh1 is de-phosphorylated and APC/Ccdh1 is active.

TLS Online TPP Program

#Id: 6538

#Unit 7. System Physiology – Animal

The insulin receptor, a receptor tyrosine kinase, activates several signal transduction pathways, including the one leading to the activation of protein kinase B