Can a boy and a girl be identical twins?

In 99.9% of cases boy/girl twins are non-identical. However, in some extremely rare cases resulting from a genetic mutation, identical twins from an egg and sperm which began as male (XY) can develop into a male / female pair. The normal genetic make-up of a girl is XX.

Read more

Why don't my identical twins look alike?

Identical twins came from the same sperm and egg, so they have the same chromosomes and genes. As identical twins get older they may look more and more different, because they are exposed to more diverse environments. The science of epigenetics explains how these environmental influences can affect the genes. And another question, can an identical twin be like in every way? Even if 2 people have the same set of genes, because of the different environments they experience ? i.e. in the womb (maybe one got more nutrients than the other), the types of illnesses they have had as they grew up; the lifestyle they lead, etc, there can be differences in how much each twins' genes are turned on or

Moreover, which planet is responsible for twins?

The size, mass, composition and rotation of Uranus and Neptune are in fact so similar that they are often called planetary twins. These parameters lie between those of the Earth and the giants Jupiter and Saturn. Which planet is responsible for male child? For a male child, the planets - Sun and Jupiter and for a female child, Mercury should be analysed. The persons who have numbers 1 and 3 in their date of birth usually have the blessings of a male child. The presence of numbers 2, 5, 6 gives daughters.

What is the probability that I will have twins?

It is estimated that 1 in 250 natural pregnancies will naturally result in twins. While twin pregnancies can happen by chance, there are some factors that may increase your odds of having two babies at the same time. Let's learn about twins! One may also ask what zodiac signs are slytherin? Here is a comprehensive guide for fans who wonder what Hogwarts house they'd belong to based on their zodiac sign. 1 PISCES - Hufflepuff. 2 AQUARIUS - Ravenclaw. 3 CAPRICORN - Slytherin. 4 SAGITTARIUS - Gryffindor. 5 SCORPIO - Slytherin. 6 LIBRA - Hufflepuff. 7 VIRGO - Ravenclaw. 8 LEO - Gryffindor.