Roberts Syndrome is an extremely rare genetic disorder that is characterized by mild to severe prenatal retardation or disruption of cell division,leading to malformation of the bones in the skull,face,arms,and legs.Shown below is a pedigree for a family with Robert's Syndrome.Based on this pedigree what mode of inheritance does Roberts Syndrome exhibit?
A)autosomal dominant
B)autosomal recessive
C)sex-linked dominant
D)sex-linked recessive
E)random

Question

Roberts Syndrome is an extremely rare genetic disorder that is characterized by mild to severe prenatal retardation or disruption of cell division,leading to malformation of the bones in the skull,face,arms,and legs.Shown below is a pedigree for a family with Robert's Syndrome.Based on this pedigree what mode of inheritance does Roberts Syndrome exhibit? 
A)autosomal dominant 
B)autosomal recessive 
C)sex-linked dominant 
D)sex-linked recessive 
E)random

Quizplus · Accepted Answer

Roberts Syndrome appears to be inherited in an autosomal recessive manner as both parents are carriers of the trait and two of their children have the disorder.

Roberts Syndrome Is an Extremely Rare Genetic Disorder That Is