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TLS Online TPP Program

#Question id: 664

Which is evidence that structures for proteins determined by X-ray crystallography represent the structures in solution?

#SCPH01 Biochemistry

  1. Their similarity to structures determined by NMR.

  2. The protein crystals are soluble in water.

  3. The proteins must align in a regular pattern to form a crystal.

  4. Only one conformation is ever possible for a protein so it is irrelevant whether the protein is in a crystal or in solution.

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TLS Online TPP Program

#Question id: 1736

#SCPH05 I Biotechnology

Lipopolysaccharide (LPS) from Gram-negative bacteria is:
TLS Online TPP Program

#Question id: 2999

#SCPH28 | Zoology

Agar is superior to gelatin as a solidifying agent because agar
TLS Online TPP Program

#Question id: 1285

#SCPH06 I Botany

Proteoglycans are:
TLS Online TPP Program

#Question id: 1787

#SCPH05 I Biotechnology

The classical and alternative pathways meet at complement component
TLS Online TPP Program

#Question id: 11537

#SCPH28 | Zoology

Testosterone is an example of a chemical signal that affects the very cells that synthesize it, the neighboring cells in the testis, along with distant cells outside the gonads. Thus, testosterone is an example of ________.

 I) an autocrine signal

 II) a paracrine signal

 III) an endocrine signal