DNA Structure and Function Test

The DNA double helix molecule is composed of repeating monomers called?

• Amino Acids

• Fatty Acids

• Monosaccharides

• Nucleotides

Which of the following correctly list the three parts that make up a monomer of DNA?

• Dextrose Starch, Polymerase, and a Nitrate-Base

• Deoxyribose Sugar, Phosphate Group, and a Nitrogen-Base

• Dextrose Starch, Phosphate Group, and a Nitrogen-Base

• Deoxyribose Sugar, Polymerase, and a Nitrate-Base

Where are the DNA molecules located in an Eukaryotic cell?

• in the Nucleus

• in the Ribosome

• in the Mitochondria

• in the Golgi Apparatus

What type of chemical bond connects the Nitrogen-Bases together?

• Ionic Bonds

• Covalent Bonds

• Metallic Bonds

• Hydrogen Bonds

The DNA Backbone is made-up of ...

• a Phosphate Group and a Nitrogen-Base

• a Deoxyribose Sugar and a Phosphate Group

• a Deoxyribose Sugar and a Nitrogen-Base

• two Deoxyribose Sugars

Of the four DNA Nitrogen-Bases, which two are classified as Pyrimidines?

• Adenine and Thymine

• Adenine and Guanine

• Cytosine and Thymine

• Cytosine and Guanine

Which of the following correctly identifies how the Nitrogen-Bases pair together?

• Adenine pairs with Cytosine while Thymine pairs with Guanine

• Adenine pairs with Guanine while Cytosine pairs with Thymine

• Adenine pairs with Thymine while Cytosine pairs with Guanine

• Each Nitrogen-Base can only pair with itself - such that Adenine pairs with Adenine

During what phase of the cell cycle are the DNA molecules replicated?

• G1 phase

• S phase

• G2 phase

• Cytokinesis

A section of DNA contains the sequence A T T G A T. What is the complementary DNA sequence?

• T U U C T U

• A T T G A T

• T A A C T A

• U A A C U A

According to Chargaff’s Rules - The amount of Guanine in an organism always equals the amount of ...

• Uracil

• Thymine

• Adenine

• Cytosine