Gigantism

What is the type of mutation responsible for Down Syndrome and what for Turner syndrome?

What is the type of mutation responsible for Down Syndrome and what for Turner syndrome?

Public Comments

1. Down Syndrome is caused by the presence of an extra 21st chromosome. Turner Syndrome occurs in females that are missing an X chromosome
2. Neither of these conditions is caused by a mutation - a mutation is a change in the base pair sequence of a gene. Down Syndrome is caused by an extra chromosome and Turner Syndrome is caused by a missing or damaged X chromosome.