Question

A girl is born with Turner syndrome.

Where did the non-disjunction event occur?

1. In [ the father, the mother, either the father or the mother] * please select an answer from the bracket

2. In [ meiosis I, meiosis II, either meiosis I or meiosis II ] * please select an answer from the bracket

Answer 1

Page 1 ② A girls is borne with Turner syndrome. on The non-disjonction event in reither the father or the mother. Boys inherit the x chromo is missing a variety Turnes syndrome is a condition that affects results when one of the x chromosomes (sex chromosomes) or partially missing. Turneur syndrome of medical and develop mental problems including short height, failure of the ovaries to develop and heart dereets. cause

Page 2 Yehromosome Boyes Inshenit x chromosome from their mothers and in ease of from their father. But from either father x chromosome inherited or mother. In girls who have two ner syndrom (XO) copy the x chromosome mi is missing. par Hally missing or altered. one of in either melosis oleur 2 Non - disjunction event oor meiosis 1 Oelzs when and cos Non disjunction Chromosomes do not Separately properly during cell division. This produces cells with imbalanced chromosome numbers. During Anaphase I Anaphase I of meioski and malosis IT respectively these-chromtids seperation of two identical sister chromatics of a chromosome oeurs. When non disjunction the Chroma tids do not separate. The result is that one cell Gleie receives both chromatids while other cell recieve neither. Each date daughter ell then has an abnormal chromosome number. In this way disjunetion of can cause Individuals to be born female Deurs 9 yon- One X chromosome.
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