Cattle Chromosomal Abnormalities Quiz
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Questions and Answers

What is the most common chromosomal abnormality found in cattle?

  • XX/XY translocation
  • XO Turner's syndrome
  • XXY Klinefelter's syndrome
  • 1/29 translocation (correct)
  • Which animal shows abnormalities of chromosome pairing at the pachytene stage of meiotic prophase?

  • Pig
  • Horse
  • Mule (correct)
  • Sheep
  • What is the reduced fertility manifested as in female cattle with centric fusion translocations?

  • Small litter size
  • Increase in nonreturn rate
  • Decrease in services per conception (correct)
  • Increase in genetic material loss
  • What is the most common chromosomal anomaly found in pigs?

    <p>Centric fusion translocations</p> Signup and view all the answers

    Which species commonly suffers from XY sex reversal leading to phenotypic females being genetic males?

    <p>Horses</p> Signup and view all the answers

    In which species is XXY Klinefelter's syndrome associated with infertility?

    <p>Cats</p> Signup and view all the answers

    During which stage of development is the embryo most susceptible to teratogenic agents?

    <p>Periods of rapid differentiation</p> Signup and view all the answers

    Which of the following is NOT among the chemical agents investigated for detrimental effects on the embryo or fetus during pregnancy?

    <p>Vitamins</p> Signup and view all the answers

    What is a common practice in domestic animal breeding that increases the risk of embryonic and fetal infections with teratogenic agents?

    <p>Inbreeding</p> Signup and view all the answers

    When do developmental abnormalities in animals due to teratogenic agents occur?

    <p>During periods of rapid differentiation</p> Signup and view all the answers

    Which etiology of developmental disorders can impact vulnerable periods during fetal development and growth?

    <p>Aberrations during any of the mentioned stages</p> Signup and view all the answers

    Why is there a growing need to distinguish abnormalities due to teratogens from genetic disorders affecting embryonic development?

    <p>To identify genetic-environmental interactions</p> Signup and view all the answers

    What is the most severe malformation involving fusion of the eyes in a single orbital cavity with a proboscis above a rudimentary nose called?

    <p>Cyclopia</p> Signup and view all the answers

    What condition involves fluid accumulation in the fetal brain, abdomen, body cavities, and subcutis?

    <p>Dropsy of the fetus</p> Signup and view all the answers

    Which term refers to the swelling of soft tissues due to excessive fluid accumulation?

    <p>Oedema</p> Signup and view all the answers

    Which condition involves excessive fluid in the peritoneal cavity and often accompanies fetuses that have died preterm?

    <p>Ascites</p> Signup and view all the answers

    What term is used to describe the distension of the abdomen by excessive fetal fluid in cows?

    <p>Hydrallantois</p> Signup and view all the answers

    In cattle, what is commonly associated with fluid accumulation in the amnion?

    <p>Hydramnios</p> Signup and view all the answers

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