which feature of deuterostome development explains the formation of identical human twins?
Which feature of deuterostome development explains the formation of identical human twins?
Answer:
The formation of identical human twins can be explained by a process called “indeterminate cleavage,” which is a feature of deuterostome development. Indeterminate cleavage is a type of cell division that occurs in deuterostomes, including humans, where the fate of the cells is not determined early on. In this process, the cells produced by cleavage retain the ability to develop into complete organisms even after the first few divisions.
Identical twins are formed when a single fertilized egg, also known as a zygote, undergoes indeterminate cleavage, leading to the development of two separate embryos with the same genetic material. This is why identical twins share the same DNA and have a striking resemblance to each other. The phenomenon of identical twins is a fascinating result of deuterostome development and indeterminate cleavage.