Nutrition, the age of the mother at the time of birth, environmental factors, and of course, genetics. All of these factors play a role in the health of your baby, and may play a role in the risk that your baby may inherit a genetic disorder.
Prenatal genetic testing is now being offered more than ever to soon-to-be parents. For couples who suspect that they have a family history of a genetic disorder…
There are two types of chromosomes, autosomes and sex chromosomes. Autosomes are numbered 1 - 23 and are the chromosomes that are not associated with sex determination. Sex chromosomes are labelled as X and Y and determine the sex of the child. Each chromosome pair is made up of two chromosomes, one given from each parent. Inheritance patterns occur in either dominant or recessive forms. If a gene is said to be dominant, only one of the affected chromosomes needs to be present in the pair in order for …show more content…
This gene can be passed down for generations without consequence until this individual has a child with another carrier of the same mutated gene. This is important when considering recessive disorders. These “weaker” genes are referred to as recessive genes.
Autosomal dominant
Autosomal dominant disorders the mutated gene is located on an autosome. Because these disorders are characterized as dominant, only one affected chromosome needs to be present in order for the disorder to be inherited. A parent carrying the affected chromosome will have a 50% chance of passing this disorder on to their offspring.
Autosomal recessive
In Autosomal recessive disorders, the mutated gene is located on an autosome. In order for a recessive genetic disorder to be inherited, both chromosomes carrying the mutated gene will need to be inherited. If only one parent is a carrier, there will be no chance of inheriting the disorder. If both parents are carriers of this gene, there will be a 25% chance of
Prenatal genetic testing is now being offered more than ever to soon-to-be parents. For couples who suspect that they have a family history of a genetic disorder…
There are two types of chromosomes, autosomes and sex chromosomes. Autosomes are numbered 1 - 23 and are the chromosomes that are not associated with sex determination. Sex chromosomes are labelled as X and Y and determine the sex of the child. Each chromosome pair is made up of two chromosomes, one given from each parent. Inheritance patterns occur in either dominant or recessive forms. If a gene is said to be dominant, only one of the affected chromosomes needs to be present in the pair in order for …show more content…
This gene can be passed down for generations without consequence until this individual has a child with another carrier of the same mutated gene. This is important when considering recessive disorders. These “weaker” genes are referred to as recessive genes.
Autosomal dominant
Autosomal dominant disorders the mutated gene is located on an autosome. Because these disorders are characterized as dominant, only one affected chromosome needs to be present in order for the disorder to be inherited. A parent carrying the affected chromosome will have a 50% chance of passing this disorder on to their offspring.
Autosomal recessive
In Autosomal recessive disorders, the mutated gene is located on an autosome. In order for a recessive genetic disorder to be inherited, both chromosomes carrying the mutated gene will need to be inherited. If only one parent is a carrier, there will be no chance of inheriting the disorder. If both parents are carriers of this gene, there will be a 25% chance of