Could my child's symptoms of delayed motor development be hereditary even though i don't have it?

Possible: Heredity is not always as straightforward as one parent to child - extended family history often gives a clue, but there is still we dont totally understand. Prenatal and neonatal factors can be other risks. Causes can be hard to pinpoint, but consultaiton with developmental pediatricians, pediatric neurologists, or pediatric neuropsychologists may be able to answer questions.

Yes, if both parents: are unaffected carriers of a gene mutation, a child can inherit both copies of the abnormal gene, called Autosomal Recessive transmission. Also, an accident during the splitting and combining of egg and sperm can cause a genetic abnormality that was not inherited. A Chromosomal Microarray blood test may determine if either of these is the cause of your child's neurodevelopmental disorder.