Prokaryote v Eukaryote Chromosomes

A chromosome is a...

• single molecule of DNA

• single molecule of RNA

• structure found ONLY in eukaryotic cells

• structure found ONLY in prokaryotic cells

What feature of eukaryotic chromosomes distinguishes them from the chromosomes of prokaryotes?

• Histone proteins

• Circular DNA

• Double-stranded DNA molecules

• Multiple genes along the length of each chromosome

Where can the entire genome of an organism be found?

• In the DNA present in plasmids of a bacterial cell

• In the DNA present in the nucleus of a eukaryotic cell

• In the DNA present in the nucleus and chloroplasts of a plant cell

• In the DNA present in the nucleus and mitochondria of an animal cell

Prokaryotic chromosomes are ​ (a)   , while eukaryotic chromosomes are ​ (b)   .

• circular
• linear

Prokaryotic chromosomes are ​ (a)   , while eukaryotic chromosomes are ​ ​ (b)   .

• naked
• made with histone proteins

Prokaryotic cells typically have ​ (a)   , while eukaryotic cells typically have ​ (b)   .

• one chromosome
• multiple chromosomes

​ (a)   are at the center of a eukaryotic chromosome to hold sister chromatids together. ​ (b)   are at the ends of a chromosome to cap and protect the end of a chromosome.

• Centromeres
• Telomeres

Double stranded DNA molecules occur in...

• eukaryotes only

• prokaryotes only

• both prokaryotes and eukaryotes

• neither prokaryotes nor eukaryotes

Prokaryote DNA is mostly located in the ​ (a)   , while eukaryote DNA is mostly located in the (b)   .

• nucleoid region
• nucleus