Honors Bio DNA Structure, Scientists, and Replication

What organic compound is DNA?

• Lipid

• Carbohydrate

• Nucleic Acid

• Protein

What are the base pairing rules?

• Every nitrogen base can bond with any other nitrogen base.

• A-C, T-G

• A-T, C-G

What is the composition of the DNA backbone?

• Sugar, Phosphate, Base

• Sugar

• Phosphate

• Deoxyribose sugar and phosphate

In a specific DNA sequence, calculate the percentage of adenine if the percentage of cytosine is 20%.

• 20%

• 10%

• 5%

• 30%

To make a chromosome, DNA must coil tightly around

• Lipids

• Around itself

• Proteins called histones

• Proteins called chromatin

The image illustrates which of the following structures?

• Amino acid
• Nucleotide
• Protein
• Peptide Bond

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Tags

NGSS.HS-LS1-1

What did Erwin Chargaff conclude from his experiments?

• Nitrogen bases are held together by peptide bonds
• A and T, C and G always occur in equal amounts
• Proteins are the carriers of genetic information
• C and G rarely occur in eukaryotic organisms

Tags

NGSS.HS-LS1-1

DNA codes for...

• cholesterol
• proteins
• fatty acids
• a sandwich

Tags

NGSS.HS-LS1-1

By using radioactive isotopes, Hershey and Chase were able to conclude that _____ is the carrier of genetic information.

• DNA
• Protein
• Carbohydrate
• Lipid

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1