Human Karyotypes Quiz

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John Mitchell
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Human Karyotypes Quiz - Quiz

A karyotype is a type of chromosome. Play this informative quiz and find out how well you know about it. The process of making a karyotype begins with taking a sample of cells and separating them according to their size, shape, and other physical characteristics. This quiz will offer you unlimited attempts and allows you to enhance your learning about Karyotype. Play the quiz to know more. All the best!


Questions and Answers
  • 1. 

    During mitosis, 23 pairs of human chromosomes condense and are visible with a light microscope.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    During mitosis, the 23 pairs of human chromosomes condense and become visible with a light microscope. This is because the chromosomes, which contain the genetic material of an individual, condense and coil up tightly during mitosis. This condensation allows for easier visualization of the chromosomes under a light microscope, enabling scientists to study their structure and behavior during cell division.

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  • 2. 

    A common misconception is that bands located on Giemsa dye chromsomes represent_____ gene(s).

    • A.

      1

    • B.

      23

    • C.

      46

    • D.

      50,000

    • E.

      1,000,000

    Correct Answer
    A. 1
    Explanation
    The correct answer is 1. This is because the bands located on Giemsa dye chromosomes represent individual genes. It is a common misconception that each band represents multiple genes, but in reality, each band corresponds to a single gene.

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  • 3. 

    How many patient cases were presented in the human karyotyping lesson?

    • A.

      3

    • B.

      6

    • C.

      9

    • D.

      0

    Correct Answer
    A. 3
    Explanation
    In the human karyotyping lesson, a total of 3 patient cases were presented.

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  • 4. 

    Which characteristic is not a piece of information obtained from a karyotype?

    • A.

      Sex of the individual

    • B.

      Number of autosomes

    • C.

      Number of sex chromosomes 

    • D.

      Number of Giiemsa bands

    • E.

      Placement of centromere

    Correct Answer
    D. Number of Giiemsa bands
    Explanation
    A karyotype is a visual representation of an individual's chromosomes, arranged in pairs according to size and shape. It provides information about the number and structure of chromosomes. The sex of the individual, number of autosomes (non-sex chromosomes), number of sex chromosomes, and placement of the centromere can all be determined from a karyotype. However, the number of Giiemsa bands is not a piece of information obtained from a karyotype. Giiemsa bands refer to specific regions of chromosomes that can be stained and visualized under a microscope. The number of Giiemsa bands is not a standard or commonly used parameter for analyzing karyotypes.

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  • 5. 

    The cooperative effort between Zooweb and the University of Wisconsin State Laboratory of Hygiene published each karyotype in three forms or formats.  Which formats are correct?

    • A.

      Original unmodified smear

    • B.

      Original unmodified cross-section

    • C.

      Original with extraneous materials removed

    • D.

      Chromosomes arranged in standard order

    • E.

      Chromosomes arranged in the biological order

    Correct Answer(s)
    A. Original unmodified smear
    C. Original with extraneous materials removed
    D. Chromosomes arranged in standard order
    Explanation
    The cooperative effort between Zooweb and the University of Wisconsin State Laboratory of Hygiene published each karyotype in three formats. The correct formats are the original unmodified smear, the original with extraneous materials removed, and the chromosomes arranged in standard order. These formats ensure that the karyotypes are presented in their true, unaltered form, while also removing any unnecessary materials and organizing the chromosomes in a standardized manner for easier analysis and comparison.

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  • 6. 

    The cooperative effort between Zooweb and the University of Wisconsin State Laboratory of Hygiene published each karyotype in three forms or formats. How many chromosomes does a patient have with Trisomy-18?

    • A.

      23

    • B.

      46

    • C.

      47

    • D.

      52

    Correct Answer
    C. 47
    Explanation
    Trisomy-18 is a genetic disorder where an individual has an extra copy of chromosome 18. Normally, humans have 46 chromosomes, but in the case of Trisomy-18, there is an additional copy of chromosome 18, resulting in a total of 47 chromosomes. Therefore, the correct answer is 47.

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  • 7. 

    In the karyotyping activity, patient A, how many chromosomes did you have to match up to form a correct karyotype?

    • A.

      3

    • B.

      4

    • C.

      5

    • D.

      6

    • E.

      8

    Correct Answer
    B. 4
    Explanation
    In the karyotyping activity, to form a correct karyotype for patient A, you had to match up 4 chromosomes.

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  • 8. 

    What is the correct sex of patient B?

    • A.

      Female

    • B.

      Male

    • C.

      Male & Female

    • D.

      There is no patient B

    Correct Answer
    B. Male
    Explanation
    The correct sex of patient B is male.

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  • 9. 

    A sperm has

    • A.

      Both an X and a Y chromosome

    • B.

      An X OR a Y chromosome

    • C.

      Only a Y chromosome

    • D.

      None of the above

    Correct Answer
    B. An X OR a Y chromosome
    Explanation
    A sperm has either an X or a Y chromosome. This is because sperm cells are responsible for determining the sex of an individual during reproduction. If a sperm cell carries an X chromosome, it will result in a female offspring, while a sperm cell carrying a Y chromosome will result in a male offspring. Therefore, the correct answer is that a sperm has an X OR a Y chromosome.

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  • 10. 

    What makes this person's karyotype abnormal?

    • A.

      An extra autosome

    • B.

      A missing sex chromosome

    • C.

      An extra sex chromosome

    • D.

      None of the above

    Correct Answer
    A. An extra autosome
    Explanation
    This person's karyotype is abnormal because they have an extra autosome. Karyotype refers to the number and appearance of chromosomes in an individual's cells. In a normal karyotype, there should be a specific number of autosomes (non-sex chromosomes) and sex chromosomes. However, in this case, there is an additional autosome present, which deviates from the typical karyotype and makes it abnormal.

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  • Current Version
  • Aug 18, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 28, 2012
    Quiz Created by
    John Mitchell
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