What is an example of co-dominance?
Sickle Cell Anemia
Huntington's disease
Marfan Syndrome
ABO blood type inheritance
The Correct Answer is D
(A) Sickle Cell Anemia: Follows incomplete dominance, where the heterozygous trait has a milder phenotype.
(B) Huntington’s Disease: Follows autosomal dominant inheritance, not co-dominance.
(C) Marfan Syndrome: Is an autosomal dominant disorder, not co-dominance.
(D) ABO Blood Type Inheritance: Co-dominance means both alleles are fully expressed. In ABO blood types, a person with AB blood has both A and B antigens expressed equally.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"A":{"answers":"A"},"B":{"answers":"A"},"C":{"answers":"B"},"D":{"answers":"A"},"E":{"answers":"B"},"F":{"answers":"C"},"G":{"answers":"C"}}
Explanation
|
Prerenal |
Intrarenal |
Postrenal |
|
Severe Dehydration Sepsis CHF (Congestive Heart Failure) |
Acute Tubular Necrosis (ATN) Gentamicin (Aminoglycoside antibiotic toxicity) |
Benign Prostatic Hyperplasia (BPH) Renal Calculi (Kidney Stones) |
Severe Dehydration: Prerenal
Decreased blood flow to the kidneys due to low volume.
Sepsis: Prerenal
Hypotension from systemic infection reduces kidney perfusion.
CHF (Congestive Heart Failure): Prerenal
Reduced cardiac output leads to inadequate renal perfusion.
Benign Prostatic Hyperplasia (BPH): Postrenal
Urinary outflow obstruction causes back pressure on the kidneys
Renal Calculi (Kidney Stones): Postrenal
Blockage in the urinary tract prevents urine excretion, leading to kidney damage.
Acute Tubular Necrosis (ATN): Intrarenal
Direct injury to kidney tubules due to ischemia or toxins.
Gentamicin (Aminoglycoside antibiotic toxicity): Intrarenal
Causes nephrotoxicity, damaging renal tubules directly.
Correct Answer is A
Explanation
(A) Tetany: Hypocalcemia increases neuromuscular excitability, leading to muscle cramps, spasms, and tetany (involuntary muscle contractions).
(B) Hypertension: Hypocalcemia does not directly cause hypertension; it may lead to hypotension.
(C) Constipation: Hypercalcemia, not hypocalcemia, causes constipation.
(D) Polyuria: Hypercalcemia leads to polyuria, while hypocalcemia does not.
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