Bio starter #27

Match the Scientist to their contribution to the structure of DNA

• Used X-Rays to determine DNA structure.

• Erwin Chargaff

• Experimented on viruses.

• Rosalind Franklin

• C=G and A=T

• James Watson and Frances Crick

• Used a 3D model to show DNA structure.

• Alfred Hershey and Martha Chase

What type of bond is located in between thee base pairs of DNA?

• ionic bond
• hydrogen bond
• covalent bond
• van der Waals bond

Identify the Phosphate group on the nucleotide.

Tags

NGSS.HS-LS1-1

Identify the sugar on the nucleotide

The fact that DNA is created from one parent stand and one daugter strand is call what?

• random replication
• semi-conservative replication
• discontinuous replication
• conservative replication

Based on Chargaff's rule, if there is 30% adenine in a piece of DNA how much thymine must there be?

• 30%
• 60%
• 50%
• 40%