The design of the twins

The twins develop in the same egg or each in a different egg

1-Two eggs are fertilized by 2 spermatozoa and they nest on the walls of the uterus. This situation occurs most often in the same menstrual cycle and the twins are conceived at the same time; twins can sometimes have a different gestational age if they are conceived at one or two months apart (rare). They are born all the same at the same time. The two eggs then form two different egg cells. dizygotic twins.

2- An egg is fertilized by a spermatozoon and the resulting egg cell splits in two, forming two embryos that have the same genetic makeup. monozygotic twins. They are often very physically similar. As they get older, monozygotic twins are differentiated as a result of personal choices such as food, physical and intellectual activities... as well as life experiences. Schooling is also an important step in this area of differentiation.

In Kodinji, in the north of the state of Kerala, the twins intrigue. Indeed, 440 twins live in this locality of 14 600 inhabitants: a non-standard figure.