Meiosis 10.25

Meiosis 10.25 - Meiosis 10.25.10 CLICKER: Human somatic...

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Unformatted text preview: Meiosis 10.25.10 CLICKER: Human somatic cells contain between 7 and 14 picograms of DNA. A cell containing 14 picograms would most likely be in which stage/s of the cell cycle? G2, Prophase and Anaphase How many chromosomes are required to have one copy of each gene? Or How many chromosomes are required to have one complete copy of all the DNA needed to code for every protein? No right answer, the number of sets of chromosomes is what is important PLOIDY: number of SETS of chromosomes in a cell; Chromosomes that carry genes for the same traits (eye color, hair color etc.) are the same length and have their centromere in the same location. These chromosomes are called homologues, or a homologous pair. Haploid = 1 set 1n Diploid = 2 sets 2n talk of these having pairs of chromosomes, different then replicated or unreplicated; most cells are diploid Triploid = 3 sets 3n Tetraploid = 4 sets 4n Polyploid vs Aneuploid- Polyploid: more than 2 sets of chromosomes- Aneuploid: cells that have a different number of chromosomes but...
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Meiosis 10.25 - Meiosis 10.25.10 CLICKER: Human somatic...

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