A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

How do non-identical twins form?

Best Answers

Normally it's one egg that gets released during one menstrual cycle. If there are two eggs released and they each get fertilized by a sperm (you would need two different sperm cells too), you can have “fraternal” twins… or triplets, etc. read more

Non identical twins are born when two different eggs are fertilised at the same time. Those who come from the same egg share similar physical features and usually the same personality. Non identical twins do not look the same but their personality can be after same due to family influences. read more

Twins account for over 90 per cent of multiple births. To form identical or monozygotic twins, one fertilised egg (ovum) splits and develops into two babies with exactly the same genetic information. To form fraternal or dizygotic twins, two eggs (ova) are fertilised by two sperm and produce two genetically unique children. read more

Nonidentical twins only form when two eggs release during the same ovulation. In some cases, the eggs release simultaneously. In others, the ovaries initially release one egg. read more

Encyclopedia Research

Wikipedia: