DNA

What nitrogen base pairs with adenine in DNA?

• T
• U
• C
• G

Which nucleic acid is single stranded?

• RNA
• DNA

Which nitrogen base pairs with T in mRNA?

• A
• U
• C
• G

Which enzyme is needed to bring free nucleotides to create a new strand of DNA in DNA replication?

• DNA helicase
• DNA ligase
• DNA replicase
• DNA polymerase

Which enzyme is needed to unwind and unzip the double helix in order to make a copy of it?

• DNA helicase
• DNA ligase
• DNA replicase
• DNA polymerase

Which enzyme links up the newly copied nucleotides in DNA replication?

• DNA helicase
• DNA ligase
• DNA replicase
• DNA polymerase

The mRNA codon UGA would correspond with which tRNA anticodon?

• ACT
• ACU
• UCU
• ACA

A three base code for an amino acid is called a/an

• nucleotide
• deoxyribose sugar
• codon
• phosphate

A nitrogen base, sugar and phosphate make up a unit that connects together to make a nucleic acid.  This unit is called a/an

• amino acid
• nucleotide
• hydrogen bond
• nucleus

A long chain of amino acids is a/an

• protein
• nucleic acid
• tRNA
• mRNA

Tags

NGSS.HS-LS1-6