Biology notes 15 Oct 2008

Biology notes 15 Oct 2008 - haplotype is a collection of...

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October 15, 2008 Lecture 11 – The Case of Mary Jane 52 year old woman suffers renal failure phone call – not the mother of two of her three children people get mitochondria from only their mother kids were A and O, just like predicted kids have 2 HLAs (while neither MJ nor her husband have them( Karyotype looks at chromosomes homologous chromosomes – same size, shape, and banding patterns, but inherited from different parents to make a karyotype, chromosomes are photographed when they are most condensed this is in metaphase, due to the fact that they condense during prophase Blood types everyone has a blood type gene, of which there are 3 versions/ alleles Gene vs. Allele vs. Locus two different alleles of the blood type gene, one on each (replicated) homologous chromosome #9 the position of this gene on the chromosome is a locus
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Unformatted text preview: haplotype is a collection of several alleles all taken together Inheritance of Difference: Meiosis And the denouement shes a chimera!!!!!!!!!!!!! single celled zygotes did NOT fuse together; mass of cells mixed up together shes karyotypically normal chimera an organism composed of cells from two different zygotes tetragametic chimeras a separate fusion of sperm and egg that then mix together while her blood cells are all 1,3 other tissues (including ovaries) also have some 2,4 cells kids will not be chimeras So what? chimerism may be widespread fetal and maternal cells cross the placenta; we may all have some maternal cell lines in vitro fertilizatio increases incidence of twinning (and chimerism?) humanzee?...
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This note was uploaded on 04/04/2009 for the course BIOLOGY 1222 taught by Professor Haffie during the Spring '09 term at UWO.

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