Podcast
Questions and Answers
What is the term used to describe a condition where the chromosome complement is an exact multiple of the haploid number (23)?
What is the term used to describe a condition where the chromosome complement is an exact multiple of the haploid number (23)?
- Structural abnormality
- Polyploidy (correct)
- Aneuploidy
- Numerical abnormality
Which of the following conditions involves an abnormal number of chromosomes that is not an exact multiple of the haploid number (23)?
Which of the following conditions involves an abnormal number of chromosomes that is not an exact multiple of the haploid number (23)?
- Down syndrome (correct)
- Triploidy
- Structural abnormality
- Tetraploidy
Approximately what percentage of spontaneous abortions with a chromosomal abnormality involve triploidy?
Approximately what percentage of spontaneous abortions with a chromosomal abnormality involve triploidy?
- 1%
- 10%
- 30%
- 20% (correct)
Which of the following statements about triploids is true?
Which of the following statements about triploids is true?
What is the estimated incidence of autosomal aneuploidy in newborns?
What is the estimated incidence of autosomal aneuploidy in newborns?
Which of the following is NOT an example of a cytogenetic abnormality?
Which of the following is NOT an example of a cytogenetic abnormality?
What is the cause of Turner syndrome?
What is the cause of Turner syndrome?
What genetic condition leads to male hypogonadism?
What genetic condition leads to male hypogonadism?
What is the key factor determining male sex?
What is the key factor determining male sex?
Which scenario is most likely to result in mental retardation?
Which scenario is most likely to result in mental retardation?
What is a common characteristic of sex chromosome disorders?
What is a common characteristic of sex chromosome disorders?
How can Turner syndrome be diagnosed?
How can Turner syndrome be diagnosed?
What is the main cause of aneuploidy shown in the image?
What is the main cause of aneuploidy shown in the image?
What is the consequence of a gamete with an abnormal chromosome number fusing with a normal gamete?
What is the consequence of a gamete with an abnormal chromosome number fusing with a normal gamete?
Which of the following aneuploidies is generally lethal?
Which of the following aneuploidies is generally lethal?
Which of the following trisomies is the most common chromosomal disorder in humans?
Which of the following trisomies is the most common chromosomal disorder in humans?
What is a major risk factor for having a child with Down syndrome?
What is a major risk factor for having a child with Down syndrome?
Which of the following statements about sex chromosome aneuploidies is true?
Which of the following statements about sex chromosome aneuploidies is true?
What is the approximate incidence of Trisomy 18 (Edwards' Syndrome)?
What is the approximate incidence of Trisomy 18 (Edwards' Syndrome)?
Which of the following physical abnormalities is characteristic of Edwards' Syndrome?
Which of the following physical abnormalities is characteristic of Edwards' Syndrome?
What is the most common sex affected by Trisomy 18?
What is the most common sex affected by Trisomy 18?
Which of the following is a characteristic feature of Patau's Syndrome (Trisomy 13)?
Which of the following is a characteristic feature of Patau's Syndrome (Trisomy 13)?
Which statement regarding sex chromosome abnormalities is correct?
Which statement regarding sex chromosome abnormalities is correct?
What is the approximate survival rate for infants with Trisomy 18 (Edwards' Syndrome)?
What is the approximate survival rate for infants with Trisomy 18 (Edwards' Syndrome)?
What is the primary characteristic of Klinefelter's syndrome?
What is the primary characteristic of Klinefelter's syndrome?
Which of the following is NOT a symptom of Klinefelter's syndrome?
Which of the following is NOT a symptom of Klinefelter's syndrome?
What is the incidence of Klinefelter's syndrome?
What is the incidence of Klinefelter's syndrome?
What is the primary characteristic of XXX syndrome (Superfemale)?
What is the primary characteristic of XXX syndrome (Superfemale)?
What is the primary characteristic of XYY syndrome?
What is the primary characteristic of XYY syndrome?
What is the cause of Fragile X syndrome?
What is the cause of Fragile X syndrome?
