DNA

What is the structure of a DNA molecule?

• double helix
• single-stranded helix
• alpha helix
• beta helix

The function of DNA is to . . .

• store energy.

• code for proteins.

• make enzymes.

The name for a monomer of DNA

• nucleic acid

• nucleotide

• phosphate

• nucleus

3-piece structure labeled X

• nucleotide
• DNA
• phosphate
• nucleic acid

What 3 parts make up a nucleotide of DNA?

• Adenine + phosphate group + thymine

• Cytosine + phosphate group + polymerase

• Ribose sugar + phosphate group + uracil

• Deoxyribose sugar + phosphate group + cytosine

What are the four nitrogenous bases found in DNA?

• phosphate, nitrogen base, sugar, and helix
• adenine, thymine, guanine, and cytosine
• adenine, guanine, uracil, and cytosine
• adenine, phosphate, sugar, and thymine

The weak "bonds"/attractions that hold the two strands of DNA together.

• bases

• hydrogen bonds

• phosphate

• sugars

DNA replication results in two DNA molecules:

• Each with two new strands.
• One with two new strands and the other with two original strands.
• Each with one new strand and one original strand.
• Each with two original strands

The letters in the complementary strand of DNA replication given the parent DNA strand with bases GTAGGT.  

• CUTCCA
• CATCCA
• CAUCCA
• TCUCCT

Given the percentage of guanine (G) in a human cell's DNA to be 35.  What will the percentage of Adenine be?

• 35
• 70
• 15
• 17.5