Whenever the zygoat (fertilized egg) starts mitosis (cell division) it creates two zygoats. These two zygoats are exactly the same in looks and DNA.
Identical and fraternal twins typically share many similar characteristics
If they were not then they would not be called identical twins!
Identical twins are formed from a single egg that splits into two. Fraternal twins are formed from two separate eggs that are both separately fertilized. So identical twins have identical DNA, and fraternal twins do not.
Twins are not necessarily identical. They can be fraternal as well. Identical twins result when one fertilized egg splits in two. Fraternal twins result from two fertilized eggs.
They are twins!
Because the mother identical twins each have a different husband . . . half of his characteristics show up in their babies.
Scientists use studies of identical twins because they share the same genetic makeup. By comparing identical twins with non-identical twins, researchers can separate the effects of genetics from environmental factors in order to understand how traits and characteristics are influenced by both nature and nurture. This can provide valuable insights into the role of genes in shaping human characteristics and behaviors.
Identical and fraternal twins typically share many similar characteristics
Identical twins, while sharing the same genetic material, do not have identical retinal patterns. Each individual's retinal pattern is influenced by various factors, including environmental influences and random developmental variations, leading to unique characteristics. Consequently, even identical twins will have distinct retinal patterns that can be used for identification purposes.
there are two types of twins-- fraternal and identical. Fraternal twins are genetically unique, and they usually have physical differences. Identical twins are identically identical, such as a clone, and have exact physcial characteristics, excluding weight and scars etc.
Identical twins. Although horses sometimes have twins I'm not sure if they have identical twins.
Brittany and Cynthia Daniel are not identical twins; they are fraternal twins. While they share the same birthday and have similar features, they have distinct physical characteristics and different personalities. Identical twins originate from a single fertilized egg that splits, whereas fraternal twins come from two separate eggs fertilized by two different sperm cells.
Non-identical (fraternal) twins are born when two separate eggs are fertilized by two separate sperm. This results in siblings with different genetic makeups and physical characteristics. Non-identical twins can be the same sex or different sexes.
If they were not then they would not be called identical twins!
Approximately 30 of twins are identical, also known as monozygotic twins.
Identical twins are formed from a single egg that splits into two. Fraternal twins are formed from two separate eggs that are both separately fertilized. So identical twins have identical DNA, and fraternal twins do not.
Twins are identical because they come from the same egg.