What is the chromosome test for children?

The method of children's chromosome examination is the examination method for Down syndrome, which is a method of examining genetic diseases. It determines whether the fetus will have a genetic disease by examining the children's chromosomes. Moreover, this congenital disease cannot be cured. Generally, children with Down syndrome need to be aborted, otherwise it will bring more burden to the family. Everyone can learn about the method of children's chromosome examination.

Chromosome testing in children is to consider or exclude genetic diseases.

Children with developmental abnormalities need to check chromosomes:

1) Physical development is too small or too high;

2) Intellectual retardation or disability, etc.;

3) Abnormal genital development, such as being too small or deformed.

Chromosomal abnormalities are currently untreatable. If the chromosomes are normal, the child's development is abnormal.

1) You can wait and see, improve your eating habits, do some exercise, etc.;

2) Regularly check sex hormones and testicular ultrasound, and if any abnormalities are found, timely treatment can be given to avoid delays in treatment.

Chromosome structure sequence

1. Autonomously replicating DNA sequence: Autonomously replicating DNA sequence has a replication start point, which can ensure that chromosomes can replicate themselves during the cell cycle, thereby ensuring the stability and continuity of chromosomes in the generational transmission.

2. Centromere DNA sequence: Centromere DNA sequence is related to the separation of chromosomes. The centromere DNA sequence ensures that the chromosomes are evenly distributed between the two daughter cells during cell division.

3. Telomere DNA sequence: It is a short positive repeat sequence, which is a highly repetitive sequence of TTAGGG in humans. The function of telomere DNA is to ensure the independence and genetic stability of chromosomes.