DNA, Genes and Chromosomes

Question 1

What is DNA like in prokaryotic cells?

Answer 1

Short, circular and not associated with protein.

Prokaryotes do not form chromosomes

Question 2

Where can DNA be found in eukaryotic cells?

Answer 2

Nucleus, mitochondria and chloroplast

Question 3

What is DNA like in the nucleus of eukaryotic cells?

Answer 3

Very long, linear and associated with proteins called histones

Question 4

What does a DNA molecule and its associated proteins form?

Answer 4

A chromosome

Question 5

What is DNA found in the mitochondria and chloroplast of a eukaryotic cell like?

Answer 5

Similar to prokaryotes- short, circular and not associated with proteins

Has introns

Question 6

How many chromosomes are in a human nucleus?

Answer 6

23 pairs