Structure of Wnt proteins 

22 cysteine residues, which form disulfide bridges that maintain a globular secondary structure.

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#Id: 8652

#XL - R Botany

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#Id: 9773

#XL - R Botany

In Arabidopsis, PTI induces production of indole glucosinolates, to control of fungal pathogens. 

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#Id: 10371

#XL - Q Biochemistry

A given MHC molecule can bind numerous different peptides, and some peptides can bind to several different MHC molecules. Because of this MHC molecule is often referred to as “promiscuous”.

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#Id: 9935

#XL - T Zoology

In staphylococcal food poisoning and toxic shock syndrome, exotoxins produced by the pathogens function as superantigens, which can activate all T cells. 

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#Id: 9438

#XL - T Zoology

Polygynous

In polygyny, one male mates with more than one female in a single breeding season, but females mate only with one male.

In species with male-male competition, males are often substantially larger than females, a phenomenon called sexual dimorphism.