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 fraternal twins form?

Best Answers

To form fraternal or dizygotic twins, two eggs (ova) are fertilised by two sperm and produce two genetically unique children. References Your likelihood of conceiving twins or more, BabyCentre, Inc. (subsidiary of Johnson & Johnson), San Francisco. read more

Twins can be either monozygotic ("identical"), meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic ("fraternal"), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell. read more

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

Twins can be either monozygotic ("identical"), meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic ("fraternal"), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell. read more

Image Answers

What is the difference beween identical twins and ...
Source: socratic.org