Chromosome Numbers Flashcards
What chromosomes are labeled X and Y
Sex chromosomes
How many pairs of autosomes are there
22
What are diploid cells
Cells that contain both chromosomes of a homologous pair
The numbers of chromosomes vary among ___
Species
What are somatic cells
Body cells
In all sexually reproducing organisms chromosomes exist in pairs referred to as
Homologous chromosomes
What are haploid cells
Cells with one chromosome of a pair
What are sex chromosomes
Chromosomes that determine the gender of an individual
What are gametes
Sex cells
How many pairs of sec chromosomes are there
1
What does XY stand for
Male
What are homologous chromosomes
Chromosomes of the same set, one from the mother and one from the father
What are autosomes
All other chromosomes
What does XX stand for
Female
The number of chromosomes may be altered by
Mutations
