Each single strand of the b-sheet structure can be pictured as a twofold helix, that is, a helix with two residues per turn.

The arrangement of successive amide planes has a pleated appearance due to the tetrahedral nature of the Ca atom.

TLS Online TPP Program

#Id: 6637

#Unit 8. Inheritance Biology

Steps in determining gene order in a three-point cross 

Identify the non-recombinant progeny

Identify the double-crossover progeny

Compare the phenotypes of double-crossover progeny with the phenotypes of non- recombinant progeny

The characteristic that differs between the double crossover and the non-recombinant progeny is encoded by the middle gene

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#Id: 4997

#Unit 6. System Physiology – Plant

To favoring internode elongation is usually reduced leaf area and reduced branching, but at least in the short run this adaptation to canopy shade seems to work.

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#Id: 1715

#Unit 4. Cell Communication and Cell Signaling

Properties of allergens

 a. Allergens are either protein or glycoprotein in nature, with multiple antigenic sites.

 b. Many allergens have intrinsic enzymatic activity that affects the immune response.

c.  Many allergens contain potential pathogen associated molecular patterns.

d.  Many allergens enter the host via mucosal tissues at very low concentrations, which tend to predispose the individual to generate TH2 responses, leading to B-cell secretion of IgE.

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#Id: 9345

#Unit 4. Cell Communication and Cell Signaling

TGF-β activation

By cytoskeletal force transmitted by integrins

TLS Online TPP Program

#Id: 3616

#Unit 3. Fundamental Processes

A reading frame without a termination codon among 50 or more codons is referred to as an open reading frame (ORF).