Chemistry for Today  Chapter 21 Exercise 7/8 

Backbone > Bases Reset Bases > Backbone

7. a. Name the type of repeating unit found in this nucleic acid.
  b. Draw and name the sugar which is part of this model. Number the carbons in the sugar ring.
  c. How many phosphate groups are in one strand of this model? How many sugar groups?
  d. Name the nucleotide at the 5" end and the 3" end, respectively.
  e. List the names of the bases present in this model.
  f. What does 3"-5"phosphodiester linkage mean?
  g. Using the standard code write out the base sequence from the 5` end to the 3` end of this DNA segment. [ Bases > Backbone ]
  h. How many total hydrogen bonds would exist between these two strands?
    i. Using the standard code write out sequence of the mRNA transcription from this nucleic acid segment.
    j. Using the mRNA sequence write out the sequence of anti-codons found on the tRNA"s.
   

    k. Name the small model above. In what kind of nucleic acid is this compound found?

Index || Exercise 1 2 3 4 5 6 7 8 C H O N P