DNA Structure and Replication

Which of the following best describes a DNA molecule?

• double helix

• contains ribose

• made of amino acids

• contains Uracil

Tags

NGSS.HS-LS1-1

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

• cytosine
• guanine
• thymine
• uracil

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Tags

NGSS.HS-LS1-1

Nucleotides are made up of a sugar, phosphate, and..?

• nitrogenous base
• nucleic acid
• cholesterol
• fatty acid

A five-carbon sugar found in DNA.

• ribose
• guanine
• deoxyribose
• helicase

DNA is copied during

• Translation
• Transcription
• Reproduction
• Replication

The enzyme that adds nucleotides to the 3' end of a DNA molecule is

• DNA Polymerase
• RNA Polymerase
• DNA ligase
• RNA Ligase

DNA polymerase is a(n)

• lipid
• enzyme
• sugar
• starch

What are the 4 nitrogenous bases in DNA?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG