DNA Structure and Function and Transcription

What molecules do both DNA and RNA contain?

• Uracil
• Thymine
• Nucleotides
• Deoxyribose

Which of the following shows bases correctly paired together for DNA replication?

• G bonds with T
• T bonds with A
• C bonds with A
• C bonds with T

What is the weak bond that holds together the bases in DNA?

• covalent
• hydrogen
• ionic
• bondy

What is the first step of DNA replication?

• DNA condenses
• DNA uncoils and unzips
• Bases pair together
• The two strands twist together into the helical shape

When is DNA replicated?

• after cell division
• during cytokinesis
• before mitosis (interphase)
• during mitosis

Which is NOT a component that makes up nucleotides?

• sugar
• phosphate
• genes
• nitrogen base

DNA and RNA are very long polymers. Polymers are made up of repeating units called monomers (like building blocks). What is the monomer that makes up DNA and RNA? (both nucleic acids)

• sugars
• phosphates
• base pairs
• nucleotides

What is the three dimensional shape of DNA?

• double spiral
• spiral
• double helix
• helix

Adenine, cytosine, and guanine are only in DNA.

• True
• False

What is produced during transcription?

• protein
• DNA
• RNA
• Amino Acid