DNA STAAR / Base Pairing

With respect to normal base pairing, When a molecule of DNA replicates, Thymine will most likely pair with-

• Adenine

• Cytosine

• Guanine

• Uracil

At which point would hydrogen bonding between two nitrogenous bases normally occur?

• x

• y

• z

• k

Which compound is NOT part of a DNA Nucleotide

• Adenine

• Phosphate

• Deoxyribose

• Ribose

• Thymine

Which components of DNA are held together by weak hydrogen bonds?

• Phosphate and adenine

• Phosphate and deoxyribose

• thymine and deoxyribose

• Cytosine and Guanine

In a portion of a gene, the nitrogenous base sequence is TCG-AAT. Which complimentary nitrogenous base sequence would normally be found bonded to this section of the gene.

• ACG - TAA

• ACG - UUA

• AGC - TTA

• UGC - AAU

Tags

NGSS.HS-LS1-1

Compliment the following DNA

CCT -CTT -TAC

• GGA - GAA - ATG

• GGA - CTT - ATG

• CCT - GAA - ATG

Transcribe the following DNA

TAC -TTA - CGA

• ATG - AAU - GCA

• ATG - AAT - GCA

• AUC - AAT - GCT

• AUG - AAU - GCU

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for making proteins
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

Name this structure

• double helix
• nucelotide
• twisted ladder
• hydrogen bond

Tags

NGSS.HS-LS1-1

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