Practice problems 1 - Practice problems 1. Calico cats have...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Practice problems 1. Calico cats have patches of black and orange fur, and are heterozygous for the orange and black alleles of a coat color gene. A calico cat named Furball had a father with black fur. What sex chromosome did Furball inherit from its father? Explain your reasoning. Describe the mechanism that results in Furball’s patches of black and orange fur. Much to your surprise, Furball’s karyotype reveals that it is XXY. How would this finding affect the answers to the previous questions? If you know that Furball inherited two X chromosomes from mom, can you predict the fur phenotype of Furball’s mother? 2. DNA polymorphisms on the Y chromosome and on mtDNA have been used extensively to study the history in humans. Describe some of the advantages that these chromosomes have over autosomes for these types of studies. 3. Androgen insensitivity is an X-linked trait that results from the inability to respond to testosterone and dihydroxytestosterone. Describe the karyotypic sex (which sex chromosomes they have) and the sexual phenotypes of the gonads
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/01/2008 for the course MCB 41 taught by Professor Garriga during the Spring '07 term at University of California, Berkeley.

Page1 / 2

Practice problems 1 - Practice problems 1. Calico cats have...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online