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TLS Online TPP Program

#Question id: 27248

Which of the following forces can stabilize a normal DNA double-helix?

#XL - T Zoology
  1. Base-stacking is a non-covalent interaction that occurs between the relatively hydrophobic bases in the interior of the helix.
  2. Base-pairing is a non-covalent interaction that occurs between adjacent bases in the same strand of the DNA molecule.
  3. The hydrophilic sugar-phosphate groups are on the exterior of the helix where they can interact with each other.
  4. The deoxyribose rings form N-glycosidic bonds with the phosphate groups that link neighboring nucleotides.
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TLS Online TPP Program

#Question id: 927

#XL - Q Biochemistry

In the disease sprue, vitamin B12 (cobalamin) is poorly absorbed in the intestine, resulting in B12 deficiency. If each of the following fatty acids were in the diet, for which one would the process of fatty acid oxidation be most affected in a patient with sprue?
TLS Online TPP Program

#Question id: 928

#XL - Q Biochemistry

 Which enzyme is the major regulatory control point for B-oxidation?
TLS Online TPP Program

#Question id: 929

#XL - Q Biochemistry

During B oxidation of fatty acids, ___________ is produced in peroxisomes but not in mitochondria.
TLS Online TPP Program

#Question id: 930

#XL - Q Biochemistry

Ketone bodies are formed in the liver and transported to the extrahepatic tissues mainly as:
TLS Online TPP Program

#Question id: 931

#XL - Q Biochemistry

The major site of formation of acetoacetate from fatty acids is the:
TLS Online TPP Program

#Question id: 932

#XL - Q Biochemistry

Ammonia is incorporated into amino acids via which of the following?