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TLS Online TPP Program

#Question id: 1363

Which of the following statements best describes the difference between low-affinity integrins and high-affinity integrins?

#XL - Q Biochemistry

  1. Many integrins can exist in two conformations: a low-affinity (bent) conformation and a high-affinity (straight) conformation.

  2. Dissociation of the alpha beta heterodimer converts many integrins from the low-affinity to the high-affinity state.

  3. Association of the alpha beta heterodimer converts many integrins from the low-affinity to the high-affinity state.

  4. Proteolytic cleavage of the C-terminal tails of the two subunits converts many integrins from the low-affinity to the high-affinity state.

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TLS Online TPP Program

#Question id: 762

#XL - Q Biochemistry

Regarding the sugar residues in nucleic acids, which, if any, of the following statements is incorrect?
TLS Online TPP Program

#Question id: 19834

#XL - P Chemistry

Numbers of possible resonating structure of carbonate iong is....
TLS Online TPP Program

#Question id: 3644

#XL - S Microbiology

In replication: soon after synthesis, the DNA fragments are joined to make one continuous piece of DNA by the enzyme:
TLS Online TPP Program

#Question id: 761

#XL - Q Biochemistry

In a DNA double helix each type of base forms a stable base pair with only one type of base. When bases on an RNA strand are involved in base pairing, which bases can form stable base pairs with more than one type of base?
TLS Online TPP Program

#Question id: 11939

#XL - T Zoology

Which of the following would cause the greatest degree of hyperkalemia?