Is lower heart rate observed in infants suffering from down syndrome?

Down syndrome:

1. Down syndrome is a genetic defect that is caused when abnormal cell division results in an extra copy of chromosomes.
2. Down syndrome is also known as trisomy 21.
3. It is caused by a defect in cell division known as ‘non-disjunction’.
4. This defect leads to physical and mental challenges.
5. A few symptoms of down syndrome are almond-shaped eyes that are in a slanting position, small pinky fingers, and poor muscle tone.

Down syndrome and fetal heart rate:

1. According to research, fetal heartbeat rate has been shown to be higher than the normal range in babies suffering from down syndrome.
2. The normal average heart rate lies between $110$to $160$ beats per minute.