Lecture 13 Exam 1

UIC BioS 101 Nyberg

9

Eukaryotes

• DNA is organized in linear pieces called chromosomes.

• A complete set of information for a species requires many chromosomes, called the haploid number, n.

• For humans n=23, for dogs n=36, for the fruit fly n=4, each has a particular number of chromosomes in a complete set.

Speaker Notes:

Each cell in the human body has 46 chromosomes, twice the haploid number.