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Figure 6.10
Diagnosing Genetic Disorders
Figure 6.10 shows a picture of two teenagers. A geneticist can prepare a different type of picture of these individuals, one that shows all of their chromosomes arranged in a particular order. This picture is called a karyotype and is shown in Figure 6.11. Karyotypes are prepared by cutting and pasting chromosomes taken from body cells during mitosis. The homologous chromosomes are identified and paired by size, centromere location, and banding patterns.
A
Males and females have specific karyotypes.
B
196 MHR • Unit 2 Reproduction
Figure 6.11 Karyotype of a normal male (A) and a normal female (B)
