Deoxyribonucleotides

This animation displays the four different types of DNA building blocks: dGTP, dATP, dTTP, and dCTP. In addition to one of four possible bases, either guanine, adenine, thymine, or cytosine, each nucleotide is characterized by a deoxyribose sugar and 5’ phosphate groups, shown in red and green. When a base is bonded to a pentose sugar and phosphate groups, its name is changed such that, for example, guanine is referred to as guanosine 5’-triphosphate.

Question 1: When adenine is bonded to a pentose sugar and phosphate groups, its name is referred to as ________.
  1. dGTP
  2. dATP
  3. dTTP
  4. dCTP


Answer 1

Answer - (b) dATP

Question 2: When cytosine is bonded to a pentose sugar and phosphate groups, its name is referred to as ________.
  1. dGTP
  2. dATP
  3. dTTP
  4. dCTP


Answer 2

Answer - (d) dCTP

Question 3: When thymine is bonded to a pentose sugar and phosphate groups, its name is referred to as ________.
  1. dGTP
  2. dATP
  3. dTTP
  4. dCTP


Answer 3

Answer - (c) dTTP

Question 4: When guanine is bonded to a pentose sugar and phosphate groups, its name is referred to as ________.
  1. dGTP
  2. dATP
  3. dTTP
  4. dCTP


Answer 4

Answer - (a) dGTP