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............are chromosomes that are not directly involved in determining the sex of an individual.
Autosomes
The ................. contain genes that will determine the sex of the individual.
Sex Chromosomes
The genes that cause a fertilized egg to develop into a ........are located on the Y chromosome.
male
any individual without a Y chromosome is .............
female
.........It is a photo of the chromosomes in a dividing cell that shows the chromosomes arranged by size.
Karyotype
When sperms and egg cells form, each chromosome and its homologue separate, an event called ...............
disjunction
Humans with more than two copies of a chromosome, a condition called ..............
trisomy
.............., also called trisomy 21, is a condition in which there is an extra copy of chromosome 21.
Down syndrome
.................., also called X, is a condition in which there is a missing X chromosome in females.
Turner syndrome
Changes in an organism’s chromosome structure are called ...........
mutations
