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Mendelschen Regeln

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Was besagt die erste Mendelsche Regel? Sie besagt: Wenn Eltern reinerbig sind, sich in einem Merkmal unterscheiden, dann sind die Nachkommen der 1. Filialgeneration: Uniform.
Was besagt die zweite Mendelsche Regel? Diese besagt: Wenn 2 Individuen der F1-Generation (weiter) gekreuzt werden. so treten auch in der F2-Generation alle Merkmale der P. Generation wieder auf, beim dominant-rezessiven Erbgang, 3:1, beim intermediären Erbgang 1:2:1.
Was besagt die dritte Mendelsche Regel? Wenn man zwei Individuen einer Art kreuzt, die sich in mehr als einem Merkmal reinerbig unterscheiden, werden die einzelnen Gene unabhängig voneinander verteilt. Sie können bei der Befruchtung in neuen Kombinationen zusammentreten.
Wie heisst die erste Phase der Meiose, und was geschieht in dieser Phase? Die erste Phase ist die Prophase, in der sich die homologen Chromosomen paaren.
Wie heisst die zweite Phase der Meiose, und was geschieht in dieser Phase? Die weite Phase ist die Metaphase, in der die Chromosomen von den Spindelfasern angezogen werden.
Was geschieht danach? Danach kommt die zweite Reifeteilung, sie trennt die Chromatiden der einzelnen Chromosomen voneinander.
Was versteht man unter haploid?
Created by: alecli
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