DNA Quick Check

What does DNA stand for?

• Difluoronumeric Acid

• Deoxypentonucleic Acid

• Deoxyribonucleic Acid

• Dontknowatall

What type of bond holds the two half strands of DNA together?

• covalent bonds

• hydrogen bonds

• phosphodiester bonds

• ionic bonds

What nitrogenous base is paired with adenine?

• Thymine

• Cytosine

• Adenine

• Guanine

What nitrogenous base is paired with Guanine?

• Thymine

• Adenine

• Cytosine

• Guanine

Which of the following in not one of the components of a nucleotide?

• 5 carbon sugar

• 6 carbon sugar

• phosphate group

• nitrogenous base

What is the name of the bond that holds two nucleotides together by joining the phosphate group of one nucleotide to the sugar of the next nucleotide?

• Hydrogen Bond

• Phosphodiester Bond

• Ionic Bond

• Metallic bond

What components of the nucleotides make up the "backbone" of a strand of DNA?

• Nitrogenous base and the Phosphate group

• Nitrogenous base and the sugar

• Only the Nitrogenous bases

• Phosphate group and the Sugar

What part of the nucleotide is at the 5' end of the strand of DNA?

• Nitrogenous Base

• Phosphate Group

• Sugar

When DNA is compared to the structure of a ladder, what portion of the DNA strand makes up the ladder rungs?

• Sugar and Phosphate

• Sugar only

• Phosphate only

• Nitrogenous Bases

How many hydrogen bonds are connecting a cytosine to a guanine?

• 1

• 2

• 3

• 4