The American College of Obstetrics and Gynecology recommends that all expecting women be offered prenatal genetic screening. In fact, as maternal age rises, the likelihood of the condition increases quite sharply.Īccording to the National Down Syndrome Society, the risk factors based on maternal age are as follows:Ĥ9 years old-1 in 10 Genetic Screening for Down Syndrome
It can happen at any age, but the older a mother gets, it becomes much more probable. Maternal age is the single most decisive factor in how likely it is to birth a child with Down Syndrome. Although Down Syndrome occurs at the genetic level, it is not necessarily hereditary: you will not usually see family background that predicts its occurrence. There is no specific race or economic background where it is more common.
Not much is known about why some children are born with Down Syndrome and others are not. For example, people with Down Syndrome have low muscle tone, an upward slant to the eyes, and delayed language development, among other things. People who share the same variance in chromosomes will display similar traits. Mutations in the number of chromosomes (either more or less) will affect the way the baby grows and learns. In the case of Trisomy 18, there are three sets of Chromosome 18. In the case of Down Syndrome, the child receives an extra of Chromosome 21, for a total of three. Various mutations can occur in the number of chromosomes a child receives from their parents. They also make them learn and act differently. They have two of all the rest, but the codes in the extra Chromosome 21 make a difference in how their body’s grow. This is why Down Syndrome is also called Trisomy 21. These people have three copies of Chromosomes 21. There’s something different about the chromosomes in people with Down Syndrome. People with Down Syndrome Have an Extra Chromosome This also explains why you might look a little like one or both of your parents. Generally, we all have two of each chromosome, after receiving one of each from each parent. They have names like Chromosome 1, Chromosome 2, Chromosome 3, all the way to Chromosome 23.
BABY ARE YOU DOWN DOWN DOWN DOWN GIRL CODE
The only people who have the same code are identical twins, and that is why they look the same.Īll of us generally receive 23 chromosomes from our mother and 23 from our father.
In every cell, a person has 46 chromosomes (with the exception of sperm and egg cells, which have 23 each so that a new baby will receive 46 total). As the baby grows, it is composed of many, many more cells, but inside every cell exists the same set of chromosomes. They are there from the time a human is composed of only one cell. These codes control everything from the color of a person’s hair, to whether they are a boy or a girl.Ĭhromosomes start working before a baby is even born, as it develops in the womb.
BABY ARE YOU DOWN DOWN DOWN DOWN GIRL HOW TO
They are codes that tell the body how to grow. Chromosomes exist inside the body’s cells. To understand Down Syndrome, you first have to learn what chromosomes are. Down Syndrome affects how people grow and how they learn, including the way they act with other people. Down, who noticed that certain kids with learning problems also had other similarities, including how they looked. For every 800 babies born, one will have Down Syndrome. What is Down Syndrome?ĭown Syndrome is something that people are born with. Lastly, I will go over the types of screening available and any possible risks they include. Next, we will move onto discuss maternal risk factors. Additionally, I have studied and written specifically about genetic screening for Down Syndrome.įirst I will explain to you what Down Syndrome is. I have researched this subject in-depth and I have taught basic courses in Genetics. I took it upon myself to research and develop a project that helped the neurotypical children in my class understand Down Syndrome and how to get along together and welcome this boy into our class.Īlong with my specific research into Down Syndrome, I also have a background in Genetics. At the start of our time together, I did not have an assistant teacher to support him, so that responsibility fell to me. What do I know about all of this? As an elementary teacher, I once had a young boy with Down Syndrome integrated into my mainstream classroom. There is also a lot of knowledge out there about some specific risk factors that increase your chances of having a baby with Down Syndrome. But what exactly is Down Syndrome? What are your chances of birthing a baby with this condition? Researchers do not know a lot about what causes Down Syndrome, but they do know a lot about how it works. You may have heard about genetic testing for Down Syndrome during pregnancy.
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