Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made up of protein and a single molecule of deoxyribonucleic acid (DNA).
Related terms
Autosome: Autosomes are chromosomes that are not involved in determining the sex of an individual.
Sex Chromosome: Sex chromosomes are those that participate in sex determination. Humans have two types - X and Y.
Centromere: The centromere is the part of a chromosome where it constricts during cell division, where the spindle fibers attach during cell division to pull sister chromatids apart.