Question 1

can you please explain what trisomy 16 is and list the symptoms for me? thank you.

Accepted Answer

Miscarriage: Human being have 23 pairs of chromosomes, receiving one copy of each pair from each parent. Trisomy means that there are three copies of a particular chromosome rather than the normal 2 copies. The problems caused by trisomy depends upon which chromosome is affected. If complete (affecting all cells), Trisomy 16 is incompatable with life. Trisomy 16 is a the most common cause of early miscarriage.

Question 2

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 3

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 4

what complications could a baby with trisomy 16 experience?

Accepted Answer

This is complicated.: It's complicated because full trisomy 16 is 99.9% fatal before birth. Newborns with partial trisomy 16 may live - most have multiple birth defects and serious developmental problems. The exact types of birth defects are different depending on what parts of chromosome 16 are duplicated. Your clinical geneticist or genetic counselor can help. You can find a GC here: http://nsgc.org/p/cm/ld/fid=164.

Question 5

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 6

what is trisomy?

Accepted Answer

Extra chromosome: Trisomy is a genetic conditon in which the person has an extra chromosome. Trisomy 21or having an extra chromosome #21 is what causes downs syndrome.

Question 7

now is a partial trisomy formed?

Accepted Answer

Partial trisomy: "partial" trisomy refers to only having an extra copy of part of the chromosome, not the entire chromosome as is the case in full trisomies.  The extra piece is usually inserted into or attached to another chromosome. Hope that helps.

Question 8

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 9

what other trisomy's are there besides 21 and what do they cause?

Accepted Answer

Many: Only about 1 in four conceptions go to term. The others are mostly all affected by either trisomies or monosomies, and are incompatible with survival. Most die before implantation, and a mom won&#x27;t even know that conception had occurred.  Many may implant, but die either before an embryo is visible (a blighted ovum) or later.  Trisomies 13, 18, and 21 may survive until birth.

Question 10

whats abnormal facies in trisomy?

Accepted Answer

Abnormal facies: The term "abnormal facies" refers to unusually facial features. What unusual facial features present will depend upon which trisomy is present.

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Doctor answers about:

Mosaic trisomy 16 symptoms

A member asked:

Can you please explain what trisomy 16 is and list the symptoms for me? thank you.

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 complications could a baby with trisomy 16 experience?

A member asked:

Can trisomy 16 and trisomy 22 come from sperm?

A member asked:

What is trisomy?

A member asked:

Now is a partial trisomy formed?

A member asked:

What is the definition or description of: trisomy?

A member asked:

What other trisomy's are there besides 21 and what do they cause?

A member asked:

Whats abnormal facies in trisomy?

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