Exam 3: Nucleotides, Nucleic Acids, and Genetic Information

This is the structure of adenine. a.Is adenine a purine or a pyrimidine? b.Which base does adenine base-pair (H-bond)with in DNA? c.What is the name of the molecule that is composed of adenine linked to the C1' of ribose? d.Indicate on the drawing through which atom adenine is connected to ribose or deoxyribose. e.Indicate on the drawing which groups on adenine are involved in base-pairing or H-bonding with its complementary base.

A double stranded DNA fragment contains 12% adenine residues.Calculate the percentage cytosine residues.

Nucleotides contain one or more phosphate groups that are usually attached to the:

Matching -Eukaryotic genes often contain regions that are transcribed and later excised from the RNA, called ______.

Which of the following bases is not present in RNA?

Knowledge about the tautomeric forms of the bases of nucleic acids is needed

Nucleoside triphosphates are useful for energy transfer because the phosphoanhydride bonds are relatively ______.

Matching -Nucleic acids are composed of nucleotides that are linked by ______ linkages.