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What is the percent of identical twins that both have a given trait?
Wiki User
∙ 9y ago
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.
Wiki User
∙ 6y ago
Wiki User
∙ 14y ago100%
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Is detached earlobls a trait of their environment for identical twins?
No, that's congenital.
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.
Why are the identical twins different?
Because genes do not account for every trait or characteristic. Some characteristics are influenced by environment.
Who are clones fraternal twins or identical twins?
Identical twins, due to the fact that the one fertilized egg splits, have identical DNA. Fraternal twins, since they are from separate eggs, have different DNA.
How do you know if two twins are identical or just fraternal twins that look a lot alike?
(Person that asked the question)-Once twins are born, and old enough to determine whether they are identical or fraternal, how do you know if they are identical, or just fraternal twins that look identical? I was just curious.
Is detached earlobls a trait of their environment for identical twins?
No, that's congenital.
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.
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
Why are the identical twins different?
Because genes do not account for every trait or characteristic. Some characteristics are influenced by environment.
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!
DyslexiaResearchers have found that the concordance rate for dyslexia among identical twins is approximately percent?
50%
What is the percentage of identical twins?
about 80% because most of the people i no are identical
Why are identical twins identical and fraternal twins are not?
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.
Hereditary and environmental factors?
Hereditary and environmental factors both play roles in how an individual develops as a person. Studying identical twins who were raised apart can provide insights into whether nature or nurture is more important for a given trait.
How are twins identical?
Twins are identical because they come from the same egg.
