Nondisjunction and Karyotypes

38 questions on this block. Tap an answer and it moves on by itself — correct answers advance immediately, misses hold a few seconds so you can read why.

One rule handles every karyotype Count the chromosomes. If the count is wrong, it is nondisjunction.

Warm-up · not scored

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Meiosis I error: the homologous pair stays together, so all four gametes are affected. Meiosis II error: sister chromatids stay together, so two of the four are affected.

Part 1Karyotypes

Part 2Two sizes of mistake

Part 3Nondisjunction

Part 4Trisomy and monosomy

Part 5The four disorders

Part 6Know it to reject it

Nondisjunction and Karyotypes

Warm-up · not scored

Review Complete

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