Podcast
Questions and Answers
What causes sickle-cell anemia at a genetic level?
What causes sickle-cell anemia at a genetic level?
- Acquiring the disorder through environmental factors
- Inheriting one dominant and one recessive allele
- Inheriting two recessive alleles for the disorder (correct)
- Inheriting two dominant alleles for the disorder
What shape do the red blood cells take in a person with sickle-cell anemia?
What shape do the red blood cells take in a person with sickle-cell anemia?
- Flat and disc-like
- Sickle or crescent-moon shape (correct)
- Round and flexible
- Square and rigid
What is a consequence of the sickle shape of the red blood cells?
What is a consequence of the sickle shape of the red blood cells?
- They tend to clump together and block blood flow (correct)
- They can carry more oxygen than regular cells
- They release oxygen more efficiently
- They move more smoothly through blood vessels
Which of the following describes a characteristic of sickle cells?
Which of the following describes a characteristic of sickle cells?
What problem do sickle cells create in the circulatory system?
What problem do sickle cells create in the circulatory system?
Flashcards
Sickle-cell anemia
Sickle-cell anemia
A genetic disorder causing red blood cells to form a sickle shape.
Hemoglobin
Hemoglobin
The oxygen-carrying protein in red blood cells.
Sickle shape
Sickle shape
Crescent-moon shape of red blood cells in sickle-cell anemia.
Blood flow blockage
Blood flow blockage
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Genetic disorder
Genetic disorder
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Study Notes
Sickle-Cell Anemia Overview
- Sickle-cell anemia is a genetic disorder.
- It's caused by inheriting two recessive alleles.
- Red blood cells take on a sickle, or crescent-moon, shape.
- This irregular shape hinders smooth blood flow.
- The sickle cells are sticky and clump together.
- Clumping of cells blocks blood flow to limbs and organs.
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Description
This quiz covers the essential aspects of sickle-cell anemia, a genetic disorder resulting from the inheritance of two recessive alleles. Learn how this condition affects the shape of red blood cells and the implications for blood flow in the body.
