CHROMOSOMES

Threadlike structures

Contains gene

Colored bodies

Chroma which means

• COLOR

• B0DY

soma which means

• COLOR

• B0DY

found in the middle; used during cell division as attachment point.

• CENTROMERE

• TELOMERE

both ends; used to maintain chromosomal integrity by capping off the ends

• CENTROMERE

• TELOMERE

p (petite)

• SHORT ARM

• LONG ARM

q

• SHORT ARM

• LONG ARM

Classification:

-22 pairs

-1-22 chromosome

• AUTOSOME

• SEX CHROMOSOME

Classification:

-23rd pair

- X and Y

• AUTOSOME

• SEX CHROMOSOME

Classification based on Centromere Location:

• -Two arms are roughly equal in length

• Chromosomes: • 1, 3, 16, 19, 20

• GITNA

• METACENTRIC

• SUBMETACENTRIC

• ACROCENTRIC

• TELOCENTRIC

• STALK/SATELLITE (WITH SECONDARY RESTRICTIONS)