This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
True of consonguineous marriges and genetic abnormalities are all except? 
Select and explain. 
A. Increased risk of traits controlled by dominant genes, B. Increased risk of prenature death, C. Phenylketonuria is an example, D. Lowering of consanguineous marriges will improve community health
A: Increased risk of traits controlled by dominant genes
Answer: A: Increased risk of traits controlled by dominant genes 
Explanation: Ans. is 'a' i.e., Increased risk of traits controlled by dominant genesConsanguineous marriages: When blood relatives marry each other there is an increased risk in the offspring of traits controlled by recessive genes, and those determined by polygenes.