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Genetics Study Guide (Chapter 5)
Genetics Study Guide (Chapter 5)

... 7. Be able to read a karyotype and determine what disease (if any) the child has and his or her gender. (there will be a chart of the diseases available) 8. What is a sex-linked disorder and how is it different from a regular trait or disorder? On which chromosome are the genes found? 9. Make a Punn ...
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Chapter 8-extension (advanced notes on Mendelian Genetics)
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ppt notes on genetics - Madeira City Schools

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Supplementary Figure and Table Legends (doc 22K)

... A table of pair-wise Pearson correlation values between samples based on the log2 expression ratio shows sample correlation. High correlation coefficients between biological replicates are highlighted in green, and those correlation coefficients outside of biological replicates are highlighted in b ...
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X-inactivation



X-inactivation (also called lyonization) is a process by which one of the two copies of the X chromosome present in female mammals is inactivated. The inactive X chromosome is silenced by its being packaged in such a way that it has a transcriptionally inactive structure called heterochromatin. As nearly all female mammals have two X chromosomes, X-inactivation prevents them from having twice as many X chromosome gene products as males, who only possess a single copy of the X chromosome (see dosage compensation). The choice of which X chromosome will be inactivated is random in placental mammals such as humans, but once an X chromosome is inactivated it will remain inactive throughout the lifetime of the cell and its descendants in the organism. Unlike the random X-inactivation in placental mammals, inactivation in marsupials applies exclusively to the paternally derived X chromosome.
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