Ward AP Biology DNA and RNA Structure Review

Which type of organism has a larger genome?

• Prokaryotes
• Eukaryotes

The genome of eukaryotes is typically arranged in _____ piece(s) of DNA.

• multiple linear
• multiple circular
• a single linear
• a single circular

____ is typically double-stranded

• DNA
• RNA

The "backbone" of the DNA ladder is made of...

• sugar and base
• sugar and phosphate
• base and phosphate
• two bases

This term describes a nitrogenous base made of two rings.

• Purine
• Pyrimidine

These bases are pyrimidines

• cytosine and guanine
• cytosine and thymine
• adenine and thymine
• adenine and guanine

In the DNA ladder, a _____ always binds with a pyrimidine

• pyrimidine
• purine
• phosphate

Nitrogenous bases are held together by ____ bonds.

• covalent
• ionic
• hydrogen
• polar

The two strands of the DNA double helix...

• run in the same direction
• run in opposite directions
• run perpendicular to each other

RNA contains the sugar ____.