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Questions and Answers
What is Turner syndrome also known as?
Turner syndrome is caused by what chromosomal condition?
How frequently does Turner syndrome occur in female newborns?
What percentage of fetuses with Turner syndrome are spontaneously aborted during the first trimester of pregnancy?
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What is XXX syndrome also known as?
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XXX syndrome occurs exclusively in which gender and how frequently?
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What is Heteroploidy in cell biology?
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What is the primary cause of Heteroploidy?
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In which type of cells is Heteroploidy most often observed?
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What causes Cri du chat syndrome?
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What is the incidence rate of Cri du chat syndrome?
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In terms of gender, how does Cri du chat syndrome predominantly occur?
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What is the karyotype of a person with Klinefelter syndrome?
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Which syndrome is caused by the deletion of a segment of chromosome 5?
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What is the primary cause of Down syndrome?
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What is the primary cause of Turner syndrome?
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What does 'Haploidy' refer to in cell biology?
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Where is Heteroploidy most often observed?
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What causes Down syndrome?
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What is the incidence rate of Turner syndrome?
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In terms of gender, how does Turner syndrome predominantly occur?
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Study Notes
Chromosomal Conditions
- Turner syndrome is also known as 45,X or 45,X0.
- Turner syndrome is caused by a chromosomal condition where one of the sex chromosomes is missing or partially deleted.
Incidence Rate of Turner Syndrome
- Turner syndrome occurs in approximately 1 in 2,500 to 1 in 5,000 female newborns.
Spontaneous Abortions
- Approximately 99% of fetuses with Turner syndrome are spontaneously aborted during the first trimester of pregnancy.
XXX Syndrome
- XXX syndrome is also known as Triplo-X syndrome.
- XXX syndrome occurs exclusively in females and affects approximately 1 in 1,000 females.
Heteroploidy
- Heteroploidy refers to a condition in cell biology where a cell contains multiple sets of chromosomes.
- The primary cause of Heteroploidy is chromosomal duplication or deletion.
- Heteroploidy is most often observed in cancer cells.
Cri du Chat Syndrome
- Cri du chat syndrome is caused by the deletion of a segment of chromosome 5.
- The incidence rate of Cri du chat syndrome is approximately 1 in 20,000 to 1 in 50,000 births.
- Cri du chat syndrome predominantly occurs in females.
Klinefelter Syndrome
- The karyotype of a person with Klinefelter syndrome is 47,XXY.
Down Syndrome
- The primary cause of Down syndrome is the presence of an extra copy of chromosome 21 (trisomy 21).
Turner Syndrome
- The primary cause of Turner syndrome is the loss or deletion of a sex chromosome.
Haploidy
- 'Haploidy' refers to a cell with a single set of chromosomes.
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Description
Test your knowledge of cell biology with this quiz on Heteroploidy. Learn about the definition, causes, and occurrence of Heteroploidy in cells.
