6.1 Chromosomes and Meiosis

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6.1 Chromosomes and MeiosisWhy meiosis is important1. Forms gametes forsexual reproduction2. Crossing over duringmeiosis whichrearranges allelecombinations so thatthe offspringgenerations aregenetically differentthan the parents.
6.1 Chromosomes and MeiosisHaploid cells develop into mature gametes.• Gametogenesis is the productionof gametes.• Gametogenesis differs betweenfemales and males.– Sperm become streamlined andmotile.– Sperm primarily contribute DNAto an embryo.– Eggs contribute DNA, cytoplasm,and organelles to an embryo.– During meiosis, the egg getsmost of the contents; the othercells form polar bodies.
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6.1 Chromosomes and Meiosis

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