AP Biology DNA and RNA Structure

Identify what structure is outlined in the BLACK outline.

• Base pair

• deoxyribose sugar

• phosphate group

• hydrogen bonds

• Nucleotide

Tags

NGSS.HS-LS1-1

The two strands of DNA are held together by:

• Hydrogen Bonds
• Phosphodiester Bonds
• Glycolsyl Bonds
• Glycosidic Linkages

A nucleotide is composed of

• A phosphate, sugar and nitrogenous base

• A protein, protein and Guanine

• A phosphate, Adenine, and nitrogenous base

• A protein, Adenine and nitrogenous base

Tags

NGSS.HS-LS1-1

Which 2 molecules form the sides (backbone) of the DNA ladder?

• deoxyribose sugar and adenine
• deoxyribose sugar and a hydrogen bond
• deoxyribose sugar and the nucleus
• deoxyribose sugar and phosphate

Which two scientists are accredited with correctly deducing the double helix model of DNA?

• Watson and Crick
• Wilkins and Franklin
• Wilkins and Crick
• Watson and Franklin

What sugar is found in a nucleotide of DNA?

• deoxyribose

• ribose

• trioxyribose

Cytosine always pairs with

• Adenine
• Thymine
• Uracil
• Guanine

Assume that you have straight hair and your sibling has curly hair. What accounts for this difference?

• You have DNA and your sibling does not.
• The your sequence of nitrogen bases is different than your sibling.
• Your sibling has a weave. 
• Your sibling has a genetic mutation. 

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the complement to the DNA strand below:
5'-ATGCCAT-3'

• 5'-TACGGTA-3'
• 3'-TACGGTA-5'
• 3'-ATGGCAT-5'
• 5'-ATGGCAT-3'

Suppose a double-stranded DNA molecule was shown to have 15% adenine bases. What would be the expected percentage of guanine bases in that molecule?

• 15%
• 35%
• 85%
• Not enough information