DNA Structure and Replication Concepts

Front

List the 3 parts of a nucleotide

Back

sugar, phosphate, nitrogenous base

Front

List 2 examples of pyrimidines

Back

Cytosine and thymine

Front

List 2 examples of purines

Back

Adenine and Guanine

Front

Which 2 components make up the backbone strands in DNA?

Back

Sugar and phosphate

Front

The 2 backbone strands in a DNA double helix run in opposite directions. What is this called?

Back

Antiparallel

Front

Which type of nitrogenous bases have 2 nitrogens containing rings? Which have 1 nitrogen ring?

Back

2 rings=purines, 1 ring=pyrimidine

Front

Deoxyribose is missing hydroxyl on the 3' carbon while ribose has an extra hydroxyl on the 3'.

Back

False

Front

What is on the 3' end of a DNA nucleotide?

Back

hydroxl (OH group) on the pentose sugar

Front

What is on the 5' end of a DNA nucleotide?

Back

phosphate group

Front

What is the name of the sugar found in RNA and DNA nucleotides?

Back

ribose sugar in RNA and deoxyribose sugar in DNA