DNA & RNA: Structure & Comparison

Which one of the following proportions is true for DNA bases?

• Adenine = Cytosine

• Cytosine = Thymine

• Thymine = Adenine

• It depends on the DNA strand

Tags

NGSS.HS-LS1-1

What is the name of the DNA monomer shown?

• Nucleotide

• Amino acid

• Triglyceride

• Phospholipid

Tags

NGSS.HS-LS1-1

What determines the code, or information, of a DNA molecule?

• the structure (shape) of the nitrogen bases

• the sequence (order) of the nitrogenous bases

• the color of the nitrogen bases

• the frequency (number) of nitrogen bases

Tags

NGSS.HS-LS1-1

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogenous base

• sugar, oxygen, nitrogenous base

• sugar, phosphate group, nitrogenous base

• sugar, phosphate group, protein

Tags

NGSS.HS-LS1-1

What is DNA's basic job?

• to code for proteins
• to code for sugars
• to code for lipids
• to code for nucleic acids

Tags

NGSS.HS-LS1-1

The two strands of the DNA double helix are held together by what type of bond?

• hydrogen bonds
• peptide bonds
• covalent bonds
• ionic bonds

If 20% of the nitrogenous bases in a DNA molecule are GUANINE, what percentage of the nitrogenous bases will be ADENINE?

• 30%

• 20%

• 60%

• 40%

RNA and DNA are similar in that....

• they both comprise of the 5 nitrogenous bases: adenine, thymine, cytosine, guanine, and uracil

• they are both double helixes

• they both contain ribose sugar

• they both contain a phosphate group

Tags

NGSS.HS-LS1-1

In RNA which base replaces which?

• U replaces T

  C-G

• U replaces G

  G-C

• U replaces A

  C-G

• U replaces C

  G-C

Burt was looking at a nucleic acid and noticed the following:

it was a double helix, it had the bases thymine, adenine, cytosine, guanine, and it had a 5 carbon sugar. The nucleic acid was...

• DNA

• RNA

• could have been either DNA or RNA

• there was not enough information to tell which nucleic acid it was