Trichomes of nettles (Urtica dioica) have “cocktail” of secondary metabolites that can cause severe irritation of the skin of animals.

TLS Online TPP Program

#Id: 10805

#XL - R Botany

Tannins deter feeding by herbivores

Plant tannins also serve as defenses against microorganisms.

For example, the nonliving heartwood of many trees contains high concentrations of tannins that help prevent fungal and bacterial decay

TLS Online TPP Program

#Id: 9276

#XL - Q Biochemistry

NodA is an N-acyltransferase that catalyzes the addition of a fatty acyl chain.

NodB is a chitin-oligosaccharide deacetylase that removes the acetyl group from the terminal nonreducing sugar.

NodC is a chitin-oligosaccharide synthase that links N-acetyl-D-glucosamine monomers.

TLS Online TPP Program

#Id: 7047

#XL - T Zoology

Neutral theory of molecular evolution- Developed by Motoo Kimura, who argued that most of the evolution of DNA sequences occurs by chance (genetic drift) rather than by natural selection. 

TLS Online TPP Program

#Id: 8177

#XL - Q Biochemistry

In plant cells,

Golgi apparatus serves as the site at which the complex polysaccharides of the cell wall (pectin & hemicellulose) are synthesized.

TLS Online TPP Program

#Id: 9178

#XL - T Zoology

Fitness 

Fitness is defined as the relative reproductive success of one genotype compared with other genotypes in the population