Question 1

what is trisomy 22?

Accepted Answer

Trisomy 22: Trisomy is a big word that really only means three copies. Trisomy 22 means three copies of chromosome 22. Trisomy 22 causes many spontaneous pregnancy losses. If a fetus has trisomy 22 it rarely survives into the second or third trimester. If born alive, the newborn usually dies.

Question 2

can trisomy 16 and trisomy 22 come from sperm?

Accepted Answer

Rarely: Most trisomy is due to lack of separation of chromosomes in the maternal gamete (egg).  Rarely is trisomy of paternal origin although in downs syndrome, trisomy 21, it occurs in about 5-10%% of cases.  Usually, trisomy in sperm results in a selective disadvantage and the sperm rarely compete to fertilize the egg.  Trisomy 16 usually results in miscarriage.

Question 3

is this trisomy 22 caused from one of the parents havinga genetic disorder?

Accepted Answer

Can Be: Sometimes it may be the result of abnormal parental chromosomes, sometimes it is spontaneous.Are you rferring to trisomy 21 or down's syndrome?

Question 4

what does trisomy 20 non mosaic mean, my son had this and died at 7 weeks gestation ?

Accepted Answer

Extra 20 all cells: So sorry about your loss. This means that the baby had an extra chromosome 20 in all of his cells.  If it were a "mosaic" pattern the extra 20 chromosome would be only in SOME of his cells.

Question 5

what is mosaiic trisonomy 13?

Accepted Answer

Chromosomal anomaly: A small percentage of people with trisomy 13 have an extra copy of chromosome 13 in only some of the body's cells. In these people, the condition is called mosaic trisomy 13. The severity of mosaic trisomy 13 depends on the type and number of cells that have the extra chromosome. The physical features of mosaic trisomy 13 are often milder than those of full trisomy 13.

Question 6

what is the definition or description of: trisomy?

Accepted Answer

Chromosomal  tripled: Ordinary chromosomal traits require a pair of chromosomes to determine the traits.  Occasionally, as a mistake in cellular division, there is a tripling of one of the chromosomes.  When these occur, they usually cause unpleasant, and sometimes deadly conditions in the inheritor of these traits (e.g. Down's).  Many we do not know about as they are lethal prior to birth.

Question 7

what are the effects of trisomy 17 ?

Accepted Answer

See below: It's a rare genetic disorder where duplication of genetic material from chromosome 17 causes various abnormalities. The type and severity of symptoms varies depending on the size and location of the genetic material that is duplicated. Possible symptoms:
•impaired intelligence 
•developmental delay 
•reduced muscle tone 
•various facial anomalies 
•short stature.

Question 8

what is another name for trisomy 21?

Accepted Answer

Down Syndrome: This syndrome was named for j langdon down, a physician who ran a foundling hospital in britain many years ago. He wrote up one of the first recognized descriptions of the common features of the syndrome published in a medical journal.

Question 9

what population is affected by trisomy 13?

Accepted Answer

?? odd question ??: Humans of any race, culture,ethnic group, social status, etc. can have a baby with trisomy 13.

Question 10

interested to know how does a person inherit trisomy 13?

Accepted Answer

Genetic Mutation: Whenever you make germ cells (sperm and eggs) your body mixes up some of your genetic material and then separates it into discrete packets called chromosomes. You have 23 chromosomes in each germ cell. Sometimes in the process of making germ cells, the mechanism for sorting them out can get rusty (especially with age) and you can end up with an extra copy of number 13 -- t13.

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Doctor answers about:

Mosaic trisomy 22

A member asked:

What is trisomy 22?

A member asked:

Can trisomy 16 and trisomy 22 come from sperm?

A member asked:

Is this trisomy 22 caused from one of the parents havinga genetic disorder?

A member asked:

What does trisomy 20 non mosaic mean, my son had this and died at 7 weeks gestation ?

A member asked:

What is mosaiic trisonomy 13?

A member asked:

What is the definition or description of: trisomy?

A member asked:

What are the effects of trisomy 17 ?

A member asked:

What is another name for trisomy 21?

A member asked:

What population is affected by trisomy 13?

A member asked:

Interested to know how does a person inherit trisomy 13?

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