During meiosis
During meiosis
during meiosis (apex)
During meiosis
during meiosis
during meiosis
during meiosis (i believe), its not transcription i know that much
Noonan syndrome is caused by the mutation in a particular gene. It is a genetic disorder which means that the child which is born with this disorder, must have been in their parents.
during meiosis
Down syndrome is something you are born with; it is not something that will suddenly "appear."
There is a 50% chance that the baby will have Marfan. The father might pass on the gene that has the Marfan mutation, or he might pass on the gene that does not. Each child you have together has a 50% chance.
One ma be born with physical, and or mental illness. Such as fragile X syndrome.
That would mean that the mother is the one with Down syndrome, since men with Down syndrome are sterile. There is a 50% chance that the child will have Down syndrome and 50% chance that child will be born without.
How Common Is Marfan Syndrome?According to the National Marfan Foundation - Marfan.org - 1 in every 5,000-7,000 babies born is a child with Marfan syndrome. Other statistics about Marfan syndrome75% of people with Marfan syndrome have an affected parent.Approximately 25% of all cases are due to de novo(spontaneous) genetic mutations. This means they are the first person in their family to be affected.Marfan syndrome is an autosomal dominant mutation; this means that, if the mutation is present, the person has the syndrome to at least a mild degree. It can not skip generations. A person with Marfan has a 50% chance of passing it on to their children.Estimates indicate that approximately 0.02% of the global population has Marfan syndrome.Marfan syndrome is found equally in all ethnicities.
That depends. Men with Down syndrome have been shown to be sterile, while women with Down syndrome are capable of carrying a child, with 50% likelihood that the child will be born with Down syndrome.