DNA replication & Transcription

What are the parts of a nucleotide?

• phosphate, sugar, base

• A, T, G, C

• Nucleic Acids

• two base pairs connected

Which of the following is correctly matches: ATT GTA CGA

• TAA CAT GCT

• ATT GTA CGA

• TAA GTA TCG

• GCC ACG TAC

Tags

NGSS.HS-LS1-1

What is this a picture of?

• nucleotide

• DNA strand

• chromosome

• gene

Tags

NGSS.HS-LS1-1

Which enzyme has the job of unzipping the double helix?

• Helicase
• Polymerase
• Ligase
• Primerase

If a strand reads:
3' A A A T T T C 5'
The matching strand would read...

• 5' T T T A A A G 3'
• 3' T T T A A A G 5'
• 5' A A A T T T C 3'
• 3' U U U A A A G 5'

What is the shape of DNA?

• Double helix
• Triple helix
• Flat, bilayer
• Three-pronged rigid ladder

DNA replication turns one strand of DNA into two new strands of DNA. What percent of each new strand is the old strand?

• Half of each new DNA is the old DNA
• The old strand of DNA was digested, so none
• The new DNA is entirely made up of the old DNA
• About every sixth base comes from the old DNA

How does RNA differ from DNA?

• RNA contains uracil and deoxyribose
• RNA contains ribose and thymine
• RNA contains uracil and ribose
• RNA contains adenine and ribose

How would the DNA sequence GCTATA be transcribed to mRNA?

• GCUAUA
• CGATAT
• CGAUAU
• GCUTUT

Which RNA carries the message?

• mRNA

• rRNA

• tRNA