Question
Down syndrome is caused by blank inhumans. One dissew me two monosome, three, try somi, for tetraso me
Answers
GPT-4o mini
Down syndrome in humans is primarily caused by an abnormality in chromosome number, specifically an extra copy of chromosome 21. This condition is referred to as trisomy 21, where individuals have three copies of chromosome 21 instead of the usual two.
To clarify your terms:
- **Monosomy** refers to the presence of only one copy of a chromosome instead of the normal two.
- **Trisomy** refers to three copies of a chromosome (as in the case of Down syndrome).
- **Tetrasomy** involves four copies of a chromosome.
In summary, Down syndrome is caused by trisomy 21 (three copies of chromosome 21) in humans.
To clarify your terms:
- **Monosomy** refers to the presence of only one copy of a chromosome instead of the normal two.
- **Trisomy** refers to three copies of a chromosome (as in the case of Down syndrome).
- **Tetrasomy** involves four copies of a chromosome.
In summary, Down syndrome is caused by trisomy 21 (three copies of chromosome 21) in humans.