The triterpenes are C30 terpenes and include squalene and lanosterol, two of the precursors of cholesterol

TLS Online TPP Program

#Id: 4308

#Unit 11. Evolution and Behavior

Haldane’s rule: hybrid sterility or hybrid inviability is often limited to the heterogametic sex. (The heterogametic sex is the one with two different sex chromosomes, while the homogametic sex has two sex chromosomes of the same type).

TLS Online TPP Program

#Id: 7918

#Unit 2. Cellular Organization

TLS Online TPP Program

#Id: 9931

#Unit 4. Cell Communication and Cell Signaling

Original antigenic sin

Tendency to focus an immune attack on those structures that were present during the original.

This means that our immune systems effectively ignore the subtle changes occurring each year in pathogens

TLS Online TPP Program

#Id: 8050

#Unit 1. Molecules and their Interaction Relevant to Biology

Certain side-chain conformations are energetically favourable, these side chain confirmations are called as Rotamers.

TLS Online TPP Program

#Id: 7934

#Unit 2. Cellular Organization

The two key components in protein targeting in ER:

Signal recognition particle (SRP)

SRP receptor