Inquiry into Life 14th Edition by Sylvia Mader,Michael Windelspecht

Exercise 18

For questions 11-14, match the chromosomal mutation to its description in the key.
Key:
a. turned-up nose, wide mouth, small chin, large ears, poor academic skills, excellent verbal and musical abilities, prematurely aging cardiovascular system
b. deletion in chromosome 5
c. poor muscle tone, mental impairment, seizures, curved spine, autistic characteristics, poor speech, hand flapping, lack of eye contact
d. translocation between chromosomes 2 and 20
11. Alagille syndrome
12. Inv dup 15 syndrome
13. Williams syndrome
14. Cri du chat syndrome
15. A karyotype is prepared
a. for an unborn child through amniocentesis or chorionic villus sampling.
b. by arranging chromosomes into pairs by size, shape, and banding pattern.
c. as a means of diagnosing an abnormal chromosomal disorder.
d. using a photograph of a cell sample arrested during metaphase.
e. All of these are correct.