What type of parent requires little of their children, rarely bothers to correct their behavior, and shows very little love or concern for them?

What is the connection between Down Syndrome and Alzheimer's disease?

a. Presenilin-2 b. Neuropathy c. Apolipoprotein E d. Trisomy 21

Each facial expression starts to develop slightly earlier on the __________ side of the face than on the other side

Fill in the blank with the appropriate word.