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A síndrome de Patau está caracterizada por uma cópia extra do cromossomo 13, isso significa que há três copias do cromossomo 13 ao invés de duas. Isso se deve mais comumente a não disjunção na meiose — que ocorre em mães com idade avançada, onde os cromossomos não se separam adequadamente durante a divisão celular, resultando em um número anormal de cromossomos. Outra causa é a translocação robertsoniana desequilibrada.
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A mitose é um processo de divisão celular que resulta na formação de duas células filhas geneticamente idênticas à célula mãe. Ela é essencial para o crescimento, reparo e manutenção de tecidos em organismos multicelulares. A mitose passa por quatro fases principais: prófase, metáfase, anáfase e telófase, durante as quais os cromossomos são replicados, alinhados, separados e finalmente encapsulados em duas novas células. #biologia #microscópio
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