Chapter%2012%20%20Chromosomes

Chapter%2012%20%20Chromosomes - If a disease is autosomal...

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Chapter 12 1. Humans have 23 pairs of homologous chromosomes: 22 pairs of autosomes and 1 pair of sex chromosomes. With regards to the sex chromosomes, what is the designation for females? for males? Thus, what sex chromosomes do all eggs carry? What sex chromosomes do sperm carry? 2. Chromosomes can be seen in a “karyotype”. Be able to recognize a karyotype. 3. With respect to size, how do the X and Y chromosomes differ? 4. Autosomal recessive traits. If a disease is autosomal recessive (e.g., cystic fibrosis), what is the genotype of a diseased person? 5. Autosomal dominant trait.
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Unformatted text preview: If a disease is autosomal dominant (e.g., Huntingtons chorea), what is the genotype of a diseased person? 6. Sex-linked traits. Why are sex-linked disease more common in males? H = normal, h = hemophilia Tell the genotype for each of the following: normal male hemophiliac male carrier female hemophiliac female 7. If 2 non-sex-linked traits have genes that are on the same chromosome, will they show Mendelian inheritance patterns? That is, will they show independent assortment during anaphase I and II? The problems for this chapter are in the Genetics Problems file....
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This note was uploaded on 04/19/2008 for the course BIOL 1000 taught by Professor Kearley during the Spring '07 term at Auburn University.

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