This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Pathology
Pedigree chart description of 
Select and explain. 
A. Autosomal recessive, B. Autosomal dominant, C. X linked recessive, D. X linked dominant
A: Autosomal recessive
Answer: A: Autosomal recessive 
Explanation: (A) Autosomal recessive# AUTOSOMAL RECESSIVE> Appears with equal frequency in both sexes> Trait tend to skip generations> Affected offspring are usually born to unaffected parents> If both parents are heterozygous, approximately % of the progeny will be affected> Appears more frequently among the children of consanguine marriages.