Animal Species Forensic Examination Quiz

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Questions and Answers

Which factor affects the color of a blood stain?

  • Thickness of the stain (correct)
  • Age of the victim
  • Temperature of the environment
  • Type of weapon used

Why is the examination of blood stains important in criminal cases?

  • To analyze the physical, chemical, and microscopical characteristics of the blood (correct)
  • To identify the assailant based on the blood stain
  • To establish whether the blood is from a human or an animal
  • To determine the age of the blood stain

What does a yellow blood stain indicate?

  • Fresh blood containing oxy Hb
  • Old blood containing meta Hb
  • No significant information can be inferred from a yellow blood stain (correct)
  • Presence of foreign substances in the blood

What aspect of blood character is examined based on its solubility?

<p>Chemical character (B)</p> Signup and view all the answers

What is the purpose of examining the shape of a blood stain?

<p>To confirm if it is human blood or not (D)</p> Signup and view all the answers

What is the color of arterial blood?

<p>Bright red due to deoxygenated hemoglobin (A)</p> Signup and view all the answers

Which factor affects the color of very old blood stains?

<p>Weather condition (A)</p> Signup and view all the answers

Which type of blood contains placental cells?

<p>Blood from abscess (D)</p> Signup and view all the answers

What is the characteristic offensive odor of menstrual blood?

<p>Offensive odor (B)</p> Signup and view all the answers

What does post mortem blood clotting time indicate?

<p>Does not clot due to the secretion of fibrinolysin (B)</p> Signup and view all the answers

Which solvent is suitable for extracting fresh blood stains?

<p>(oxy Hb) : distilled water or saline (D)</p> Signup and view all the answers

What shape does a stable source of blood create?

<p>Rounded (A)</p> Signup and view all the answers

What solvent is suitable for old blood stains on leather and wood?

<p>Weak Ammonia (D)</p> Signup and view all the answers

How does blood on a dark surface change color?

<p>No red color can be seen at any time (A)</p> Signup and view all the answers

What is the color of blood from an abscess?

<p>(Hb) changed to acid hematin and contains food particles (D)</p> Signup and view all the answers

What is the shape of a source at a height greater than 100cm?

<p>(serrated with small spots around) (A)</p> Signup and view all the answers

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