Question

Humans typically have 23 pairs of chromosomes, and chromosomal disorders are generally incurable with current medical levels, which can only be detected in time through various medical facilities and instruments. To determine if a fetus has a normal chromosome, methods such as amniocentesis or non-invasive DNA testing are generally used.

Answer

Humans typically have 23 pairs of chromosomes, and chromosomal disorders are generally incurable with current medical levels, which can only be detected in time through various medical facilities and instruments. To determine if a fetus has a normal chromosome, methods such as amniocentesis or non-invasive DNA testing are generally used.