BIO 200 Lecture Notes - Lecture 6: Sister Chromatids, Spindle Apparatus, Dna Replication

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What mendel didn"t know: chromosomes and recombination: chromosomes are discovered and come in pairs, a brief introduction to mitosis and meiosis, haploidy, diploidy, polyploidy, sex chromosomes: an unusual pair, recombination via crossing over. Chromosomal theory of inheritance (the sutton-boveri theory) Identifies chromosomes as carriers of genetic material. Explains mechanisms underlying the laws of mendelian inheritance by identifying chromosomes with the paired factors that were required by. Mendel"s laws: the implications of paired chromosomes. Each of our cells contain a set of chromosomes from our mother and a set of chromosomes from our father: human chromosome counts. 23 pairs 23 from mom, 23 from dad. Offspring production drives the hereditary transmission of traits: karyotype. Map made of a set of chromosomes. These chromosomes only look like the way they do during cell division and after the dna has replicated and condensed. Most of the time, chromosomes are unreplicated and very hard to see: chromatid.