After the surprise that represents when the ultrasound shows that you are expecting twins, the first question that comes to your mind is if they are fraternal or identical twins. Having twins is a very different experience than having a single child, but also having identical twins is very different from having fraternal twins.

Different studies are still being done to know more about how genes behave differently in identical twins than in fraternal twins.  Some of those studies are discussed in the following articles.

Difference Between Fraternal and Identical Twins | Difference …

Fraternal vs Identical Twins With the increased use of assisted reproductive techniques, the incidence of twins has increased in recent times. There are two.

Study: Gene expression similar in identical twins – Science Fair …

In the Nature Genetics journal study led by Art Petronis of Canada’s Centre for Addiction and Mental Health, examined the “epigenetic” or gene expression profiles of 114 identical twins against 84 fraternal twins. …

Genes key in compulsive urge to hoard

The study included both identical and fraternal twins; while identical twins share all of their DNA, fraternal twins share roughly half of their genes, making them no more genetically similar than non-twin siblings. …

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Before having twins,  I didn’t know there were women or couples trying to increase chances of having twins.  I thought everybody thought that twins represented a lot of work and wouldn’t want to increase the chances of having them.  But it seems it is a very popular question.

The following articles try to cover that topic,  talking about IFV practices as a way to increase the chances of a twin pregnancy.

Tips for Having Twins | Twins, Conception | LilSugar – Baby …

Please do a little research and present all the facts and risks associated with multiple pregnancies before suggesting ways to increase one’s chances and to encourage it. One of the main goals of IVF practices (supported by the American … Some risks for twin pregnancies include, high rates of prematurity, low birth weight, perinatal morbidity and mortality among others. Reference: J Moise, The outcome of twin pregnancies after IVF. Human Reproduction, Vol 13, 1702-1705. …

increase chances of multiple birth – Health Resources – Health …

increase chances of multiple birth. Novel IVF Test Slash Multiple Births Increase Pregnancy Chances A revolutionary in vitro fertilisation (IVF) test, which may slash the risk of multiple births while increasing the chances of pregnancy …

Recommended Reading

• Having Twins
• Fraternal or Identical Twins
• Great video about development of twins in the womb.
• Babies and Kids Apparel

Recommended Reading

• Having Twins
• Fraternal or Identical Twins
• Increasing Chances Of Twin Pregnancy
• Babies and Kids Apparel

clipped from www.pregnancy-info.net

Multiple pregnancies have been on the rise in recent years with increasing numbers of twins and other types of multiples being born. Generally, the growing use of fertility drugs is attributed as the main reason for this rise. However, they are not the only reason why twins are born.

Conception
There are a number of different reasons why a multiple birth may occur:

Multiple eggs are released or there is more than one ovulation during your menstrual cycle. Two (or more) eggs are fertilized resulting in fraternal twins. This can occur naturally or through the use of fertility drugs.

Recommended Reading

• Having Twins
• Fraternal or Identical Twins
• Increasing Chances Of Twin Pregnancy
• Babies and Kids Apparel