i have found out that i am having diamniotic/dichronic twins. does this mean they are non-identical? thanks guys xx
2007-11-11 06:05:29 · 21 answers · asked by Jane M 1 in Pregnancy & Parenting ➔ Pregnancy
Identical twins occur when a single egg is fertilized to form one zygote (monozygotic) which then divides into two separate embryos. Although their traits and physical appearances are not exactly the same due to environmental conditions both in and outside the womb, they do have identical DNA. This is not considered to be a hereditary trait, but rather an anomaly that occurs in birthing at a rate of about 3 in every 1000 deliveries worldwide,[2] regardless of ethnic background. The two embryos develop into fetuses sharing the same womb. When one egg is fertilized by one sperm cell, and then divides and separates, two identical cells will result. If the zygote splits very early (in the first 2 days after fertilization) they may develop separate placentas (chorion) and separate sacs (amnion). These are called dichorionic, diamniotic (or "di/di") twins, which occurs 20-30% of the time. Most of the time in identical twins the zygote will split after 2 days, resulting in a shared placenta, but two separate sacs. These are called monochorionic, diamniotic ("mono/di") twins.
2007-11-11 06:10:47 · answer #1 · answered by Anonymous · 0⤊ 2⤋
I hope this information helps you:
As mothers get older and assisted conception becomes more common in developed countries, the incidence of multiple births—primarily of nonidentical siblings, but also of identical ones—has dramatically increased. Multiple pregnancies are high-risk pregnancies, with preterm delivery and monochorionicity (shared placenta) the major problems. Consequently, efforts are underway to optimize the management of these pregnancies.
While identical (monozygotic) twins are much less common than dizygotic ones, monozygotic twinning events are increased after induced ovulation and in vitro fertilization. Monozygotic twins can be diamniotic dichorionic (two amniotic sacs, two placentas), monoamniotic monochorionic (one amniotic sac, one placenta), or diamniotic monochorionic (two amniotic sacs, one placenta). The last type accounts for approximately two-thirds of all monozygotic twins.
Good luck
2007-11-11 15:29:18 · answer #2 · answered by Mariale 2 · 0⤊ 1⤋
Multiple births include twins and higher-order multiples (eg, triplets, quadruplets). The 2 types of twins are monozygotic and dizygotic.
Dizygotic twins, which sometimes are called fraternal twins, are produced when 2 sperm fertilize 2 ova. Separate amnions, chorions, and placentas are formed in dizygotic twins (see Media file 1). The placentas in dizygotic twins may fuse if the implantation sites are proximate. The fused placentas can be easily separated after birth.
Not the same exact wording your doctor gave you but there are only two types. Dizygotic (fraternal) and Monozygotic (identical)
2007-11-11 14:15:30 · answer #3 · answered by justplainsweet83 4 · 0⤊ 3⤋
No, that means they are identical. Diamniotic (identical) twins occur when the zygote splits very early in the pregnancy, resulting in the twins developing separate placentas and sacs.
2007-11-11 14:09:32 · answer #4 · answered by David M 2 · 0⤊ 2⤋
Twin to Twin Transfusion Syndrome (TTTS)
Most pregnancies result in one baby. In about 1 in 80 pregnancies, twins are conceived.
This can occur in one of two ways.
The more common way (2/3’s of cases) is for the two different sperm to fertilize two different eggs resulting in what is called a dizygotic (DZ) twin gestation. These twins are often called fraternal twins. In this type of twinning each twin has its own sac of amniotic fluid and its own placenta (afterbirth). Dizygotic twins have two sets of membranes surrounding their amniotic fluid sacs (one inner amnion layer and one outer chorion layer) and therefore they are known as diamniotic, dichorionic.
2007-11-11 14:11:00 · answer #5 · answered by cherry_0387 1 · 0⤊ 2⤋
Yes they are not identical twins they seach have their own placentas an own amniotic sacs...Hope that helps
2007-11-11 14:10:23 · answer #6 · answered by Shayna W 2 · 0⤊ 2⤋
diamniotic twins - twins developing within separate amniotic cavities; they may be monochorionic or dichorionic.
dichorionic twins- twins having distinct chorions, including monozygotic twins separated within 72 hours of fertilization and all dizygotic twins.
So yes they are fraternal(not indentical).
2007-11-11 14:10:37 · answer #7 · answered by Lorelei's Mommy ( & prego) 5 · 1⤊ 2⤋
I googled it. It means that each baby is in their own sac and will be fraternal twins. You might have one boy and one girl this way. Congrats!
2007-11-11 14:11:11 · answer #8 · answered by Precious 7 · 0⤊ 2⤋
They have two placenta's and two different amniotic sacks so it is impossible for them to be identical.
2007-11-11 14:13:13 · answer #9 · answered by msnoname7 2 · 0⤊ 2⤋
dichronic- two different times. non identical ya
2007-11-11 14:08:19 · answer #10 · answered by studio 3 · 0⤊ 3⤋