This card details the process of meiosis, including prophase (homologous chromosome pairing), metaphase (lining up in pairs with independent assortment), anaphase (separation of homologous chromosomes), and telophase, noting the second division (P2, M2, A2, T2) resembles mitosis.
Tato karta podrobně popisuje proces meiózy, včetně profáze (párování homologních chromozomů), metafáze (uspořádání v párech s nezávislým tříděním), anafáze (separace homologních chromozomů) a telofáze, a zmiňuje i druhou divizi (P2, M2, A2, T2) podobnou mitóze.
| Front | Meiosis process 2.1.6(f) |
|---|---|
| Back | Prophase - chromosomes condense, nuclear envelope and nucleolus disappear and spindles start to form - difference is that homo chromosomes pair up (bivalents) Metaphase - line up in homo pairs - spindle apparatus attaches to centromeres - generic variation as orientation of each pair random on metaphase plate (independent assortment) Anaphase - homo chromosomes pulled to opp poles (chromatids stayed joined) - sections of DNA on chromatids may entangle due to crossing over, now break off and rejoin (points at which they rejoin called chiasmata) Telophase - chromosomes assemble at each pole, nuclear membrane reforms and chromosomes uncoil, then cytokinesis occurs P2, M2, A2, T2 similar to mitosis |
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