TLS Online TPP Program

#Id: 4483

#Unit 13. Methods in Biology

Darkfield microscopy is used for very thin spirochetes, such as Treponema pallidum, the causative agent of syphilis.

TLS Online TPP Program

#Id: 10428

#Unit 4. Cell Communication and Cell Signaling

DNA methylation occurs at cytosines of CpG islands, leads to repression of the promoters. DNA hypermethylation & DNA hypomethylation is also a hallmark of cancer.

TLS Online TPP Program

#Id: 8970

#Unit 11. Evolution and Behavior

The amount of genetic variation in populations is commonly measured by two parameters –

1. The proportion of polymorphic loci

2. The expected heterozygosity is the proportion

TLS Online TPP Program

#Id: 3052

#Unit 10. Ecological Principles

Earlier arriving species tend to be r-selected species, which are better dispersers, whereas later arriving species are generally K-selected species, which are better competitors.

TLS Online TPP Program

#Id: 1407

#Unit 4. Cell Communication and Cell Signaling

In the absence of ATP, the myosin head is firmly attached to the actin filament.