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912546
3.3 Meiosis
Descrição
DP IB Biology (03 Genetics) Mapa Mental sobre 3.3 Meiosis, criado por Steve Harton em 21-05-2014.
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meiosis
ib biology
03 genetics
dp
Mapa Mental por
Steve Harton
, atualizado more than 1 year ago
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Criado por
Steve Harton
mais de 10 anos atrás
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Resumo de Recurso
3.3 Meiosis
Nature of Science
Meiosis was discovered by microscope examination of dividing germ-line cells
Drawing Stages of Meiosis
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
Separation of pairs of homologous chromosomes in the 1st division of meiosis
From diploid (2n) to haploid (n)
It allows fusion of gametes
Random orientation of pairs of homologous prior to separation
Pairing of homologous chromosomes
Crossing over
Condensation
DNA replication
Sister chromatids
Karyotype
Genetic counseling
Aim 8
Selective abortion of female fetuses in some countries
Non-disjunction
Down Syndrome
Age of parents
Other chromosome abnormalities
Chorionic villus vs amniocentesis
Risks
TOK
In 1922, the number of chromosomes counted in a human cell was 48
For what reasons do existing beliefs carry a certain inertia?
Genetic variation
Fusion of gametes
Crossing over
Random orientation
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