8.) Autosomes
9.) XX and XY
10.) The chromosomes are arranged in order from largest to smallest.
11.) 47, XY, +21
1.) 22
2.) 1
3.) The X chromosome is larger than the Y chromosome.
4.) Male
5.) In Karyotype B, there are three copies of chromosome 21. This occurs due to nondisjunction during Prophase I of meiosis, where homologous chromosomes fail to separate.
6.) Yes, there are three copies of chromosome 21 instead of the usual two.
7.) This trisomy will cause Down syndrome, leading to developmental delays and characteristic physical features.
8.) 47, XY, +21
Parent Tip: Review the logic above to help your child master the concept of karyotype worksheet answers.
