Cell wall endotoxins of some gram-negative bacteria activate macrophages, resulting in release of high levels of IL-1 and TNF-α, which can cause septic shock.

TLS Online TPP Program

#Id: 7339

#XL - T Zoology

Positive assortative mating

Individuals' mate with others who are like themselves phenotypically for selected traits. The net effect of positive assortative mating is a progressive increase in the number of  homozygous genotypes (AA and aa)

TLS Online TPP Program

#Id: 9432

#XL - T Zoology

The outcome of sexual selection is strongly influenced by the operational sex ratio

TLS Online TPP Program

#Id: 8098

#XL - Q Biochemistry

The surfaces of the cells that form the alveoli (small air spaces of the lung) are coated with surfactant, which decreases the alveolar surface tension. 

Lung surfactant contains 80 to 90% phospholipid by weight, and 70 to 80% of the phospholipid is phosphatidylcholine, mostly the dipalmitoyl species.

TLS Online TPP Program

#Id: 9857

#XL - R Botany

phot1 is the primary phototropic receptor mediates phototropism in response to low and high fluence rates of blue light. 

phot2 mediates phototropism in response to high light intensities

TLS Online TPP Program

#Id: 10715

#XL - R Botany

I. Tap root system

Tap root system found in Dicot Plants.

e.g., Mustard, Pulses, Fiscus, Mango tree, Banyan

Families- Brassicaceae, Lamiaceae, Rutaceae, Fabaceae, Moraceae, Malvaceae, Apocynaceae, Compositae, Rosaceae, Cucurbitaceae, Leguminosae, Solanaceae etc.