Organizing Chromosomes in Karyograms Quiz
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Questions and Answers

What type of chromosomal disorder can be indicated by abnormalities detected in euchromatic regions?

  • Down syndrome (correct)
  • Cri-du-chat syndrome
  • Turner syndrome
  • Klinefelter syndrome
  • Which staining technique primarily stains chromosomes at the centromeres?

  • Q-banding
  • R-banding
  • C-banding (correct)
  • G-banding
  • In a karyogram, how are human autosomes typically ordered?

  • By size (correct)
  • Randomly
  • By function
  • Alphabetically
  • What structural details of chromosomes can be revealed by R-banding?

    <p>Euchromatic regions</p> Signup and view all the answers

    Which disorder is associated with monosomy X?

    <p>Turner syndrome</p> Signup and view all the answers

    What is the primary function of C-banding in chromosome staining procedures?

    <p>Staining centromeres</p> Signup and view all the answers

    What is the main purpose of analyzing human karyotypes?

    <p>To detect gross genetic changes and anomalies</p> Signup and view all the answers

    Which type of condition can be identified by observing karyotypes?

    <p>Aneuploid conditions like trisomy 21</p> Signup and view all the answers

    What do differences in absolute sizes of chromosomes indicate in karyotypes?

    <p>Variation between genera within the same family</p> Signup and view all the answers

    Why are karyotypes becoming a source of diagnostic information for specific birth defects and genetic disorders?

    <p>Detection of chromosomal deletions and duplications</p> Signup and view all the answers

    What kind of chromosomal changes can be detected through karyotyping?

    <p>Translocations and inversions</p> Signup and view all the answers

    How do differences in the basic number of chromosomes typically manifest in karyotypes?

    <p>By having different basic numbers across genera</p> Signup and view all the answers

    In a karyogram, how are individual chromosomes depicted in terms of their short and long arms?

    <p>Short arms at the top and long arms at the bottom</p> Signup and view all the answers

    What can be used to identify the gross morphology or shape of chromosomes in a karyogram?

    <p>Centromere placement</p> Signup and view all the answers

    How can technical artifacts be identified when analyzing karyotypes?

    <p>By analyzing multiple metaphase spreads from the same individual</p> Signup and view all the answers

    Which technique is routinely used for diagnosing a wide range of chromosomal abnormalities in individuals?

    <p>G-banded karyograms</p> Signup and view all the answers

    What does FISH stand for in the context of chromosomal analysis techniques?

    <p>Fluorescence In Situ Hybridization</p> Signup and view all the answers

    What did James Watson and Francis Crick describe in 1953 related to DNA?

    <p>The network of hydrogen bonds in DNA strands</p> Signup and view all the answers

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