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Identical twins only have nearly identical DNA as environmental factors can switch genes on and off. These differences become more pronounced as the twins age.
Sources:
Segal, Nancy L. (1999). Entwined lives: twins and what they tell us about human behavior. New York: Dutton. ISBN 0-525-94465-6.
Plomin, Robert (2001). Behavioral genetics. New York: Worth Pubs. ISBN 0-7167-5159-3.
What else can I help you with?
Is detached earlobls a trait of their environment for identical twins?
No, that's congenital.
What name is given to identical offspring's?
Identical offspring are referred to as "monozygotic twins" or simply "identical twins." They arise from a single fertilized egg that splits into two embryos, resulting in genetically identical individuals. This contrasts with "dizygotic twins," or fraternal twins, which develop from two separate eggs fertilized by two different sperm. Identical twins share the same genetic material, while fraternal twins do not.
Why are the identical twins different?
Because genes do not account for every trait or characteristic. Some characteristics are influenced by environment.
Psychologists use what to determine the role that heredity and the environment play in determining trait?
Psychologists like to use sets of identical twins for studies. If the identical twins turn out more similar than fraternal twins or regular siblings, they conclude that the trait is genetically influenced and hereditary.
How many pairs of identical twins are in The world?
Estimating the exact number of pairs of identical twins in the world is challenging due to varying birth rates and reporting practices across countries. However, studies suggest that approximately 3 to 4 pairs of identical twins are born for every 1,000 births globally. Given the world's population and average birth rates, this could translate to millions of pairs of identical twins existing today. The prevalence of identical twins can also vary by region and population genetics.
Is detached earlobls a trait of their environment for identical twins?
No, that's congenital.
What percent of genetic makeup is shared by identical twins?
100%Identical twins develop from the same egg, so have the same DNA. The only thing different between identical twins is finger prints, and retinal patterns.
Can Tay-Sachs occur in twins?
Yes, it is possible. It would be more common if the twins are fraternal that only one twin would be affected by the disease because it is a recessive trait, meaning both parents must be a carrier for the offspring to be affected. If the twins are identical and the tay-sachs gene is present, then boths twins will be infected because identical twins have identical DNA
What name is given to identical offspring's?
Identical offspring are referred to as "monozygotic twins" or simply "identical twins." They arise from a single fertilized egg that splits into two embryos, resulting in genetically identical individuals. This contrasts with "dizygotic twins," or fraternal twins, which develop from two separate eggs fertilized by two different sperm. Identical twins share the same genetic material, while fraternal twins do not.
Who would show more concordance for a chiefly hereditary trait?
Identical twins would show more concordance for a chiefly hereditary trait compared to fraternal twins or siblings, as they share all of their genetic material. This higher genetic similarity increases the likelihood of both twins expressing the trait if it is primarily influenced by genetics.
Why are the identical twins different?
Because genes do not account for every trait or characteristic. Some characteristics are influenced by environment.
What is the percent of fraternal twins vs identical twins?
Fraternal twins, or dizygotic twins, occur when two separate eggs are fertilized by two sperm cells, making them genetically similar like regular siblings. Identical twins, or monozygotic twins, result from a single fertilized egg that splits into two embryos, creating genetically identical individuals. The occurrence of fraternal twins is about two-thirds of all twin births, while identical twins account for about one-third, leading to a rough ratio of approximately 67% fraternal to 33% identical twins.
What is the percentage of identical twins?
about 80% because most of the people i no are identical
Psychologists use what to determine the role that heredity and the environment play in determining trait?
Psychologists like to use sets of identical twins for studies. If the identical twins turn out more similar than fraternal twins or regular siblings, they conclude that the trait is genetically influenced and hereditary.
DyslexiaResearchers have found that the concordance rate for dyslexia among identical twins is approximately percent?
50%
What are two horses with identical genes called?
Identical twins. Although horses sometimes have twins I'm not sure if they have identical twins.
Why identical twins are similar?
If they were not then they would not be called identical twins!
