A child with a small head, minor anomalies of the face including a thin upper lip, growth delay, and developmental disability can have all of the following, except:

A child with a small head, minor anomalies of the face including a thin upper lip, growth delay, and developmental disability can have all of the following, except:
A . A polygenic syndrome
B . Teratogenic syndrome
C . A mendelian syndrome

Answer: A

Explanation:

The features given can occur as a part of a chromosomal / teratogenic / mendelian syndrome. Polygenic in answer of exclusion. In a polygenic inheritance, multiple genes are involved in the phenotypic expression. of polygenic inheritance are hypertension and diabetes.