answersLogoWhite

0


Best Answer

Down syndrome is an abnormality of the chromosomes and not genic in origin .This occurs in one of every two thousand newborns. People do not "carry" this and the child is born with three rather than two chromosomes numbered 21. The mother and father of the child are normal except in the rare case of a woman with Down syndrome who gives birth to a child; the copying or replication error occurs either in the germ cell or in the initial cell division of the embryo.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the frequency of carriers of Down syndrome in the population?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What population down syndrome is affected?

.


What is the prevalence of Down Syndrome in the current population?

In the US, there are currently almost 500,000 people with Down Syndrome.


Frequency of Down Syndrome Per Maternal Age?

http://www.ds-health.com/risk.htm


What is the frequency of Down syndrome compared to other genetic diseases?

Down syndrome is one of the most common genetic disorders, occurring in approximately 1 in 700 live births. However, other genetic diseases such as cystic fibrosis and sickle cell anemia have different frequencies depending on the population and genetic factors involved.


What is the population of people with Down Syndrome?

1 out of every 691 live births


What percentage of the Down syndrome population has atlantoaxial instability?

0-9 purcent


What are the statistics of a mother having a child with down syndrome?

For the United States, estimated as the fraction of people in the population with the syndrome, ~1/5500.


What pErcentage of people have downs syndrome?

1 in every 1,000 babies that is born. 1 is the Down syndrome and 1,000 is the people that dont.


How many people in north America have down syndrome?

There are approximately7,222,222 people with down syndrome in the world ( if you compare the stat 1 in every 800-1000 births to the world's population of 6.5 billion).


What is the genetic disorder for having three 21 chromosomes?

down syndrome


What is a chromosomal disorder that could result from nondisjunction?

Disorders, such as Down's Syndrome, are caused by nondisjunction.


What condition results when a child is born with an extra chromosome on the third pair?

Down syndrome