DNA history and Replication

Who is responsible for producing this image?

• Francis Crick
• James Watson
• Rosalind Franklin
• Watson and Crick

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

From his work with mice and pneumonia-causing bacteria, Frederick Griffith discovered what?

• Replication
• Transcription
• Transformation
• Translation

Tags

NGSS.HS-LS3-2

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

What are the two parts that make up a nucleotide?

• A nitrogen base

• A piece of the DNA backbone (Sugar & Phosphate)

• Sugar

• Phosphate

In the process of DNA replication, which of the following steps must occur first?

• DNA "unzips" between the base pairs

• The DNA sides "rezip" to make two identical DNA strands

• Complementary nucleotides pair up

• mRNA leaves the nucleus

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

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Tags

NGSS.MS-PS1-1

order of replication

• 3, 2, 1, 4

• 2, 1, 4, 3

• 2, 3, 1, 4

• 3, 4, 1, 2

Tags

NGSS.HS-LS3-2