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Chromosomes

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.

"Chromosomes" appears in:

Subjects (1)

AP Psychology

Study guides (4)

AP Biology - 1.6 Nucleic Acids
AP Biology - 5.1 Meiosis
AP Biology - 5.6 Chromosomal Inheritance
AP Biology - 6.1 DNA and RNA Structure

Practice Questions (7)

If a cell has 50 chromatids during metaphase, how many chromosomes will each daughter cell have?
During which phase does the genetic material decondense from chromosomes to chromatin?
If humans have 46 chromosomes in their somatic cells, how many chromosomes will be found in their gametes (sex cells)?
How many chromosomes do haploid cells have?
Chromosomes that cross over during meiosis exchange genetic material between __.
Most human beings have __ pairs of chromosomes.
If humans have 46 chromosomes in their somatic cells, how many chromsomes will be found in their gametes (sex cells)?

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