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Do fraternal twins share a placenta?

Yes, fraternal twins can share a placenta if they are from the same fertilized egg that split into two embryos.


Can fraternal twins share one placenta during pregnancy"?

Yes, fraternal twins can share one placenta during pregnancy.


Can fraternal twins share a placenta?

Yes, fraternal twins can share a placenta if they are from the same fertilized egg that split into two embryos. This is known as a monochorionic pregnancy.


Why do you think identical twins were more alike than fraternal twins?

Fraternal twins share most of their genetic material, by virtue of having the same parents. Identical twins, however, by definition share 100% of their DNA. This means, for example, that identical twins cannot ever be one of each gender, as fraternal twins often are.


Are female twins that are not identical called Fraternal or Maternal?

Female twins that are not identical are called fraternal twins. Fraternal twins occur when two separate eggs are fertilized by two separate sperm. Maternal twins refer to twins that share the same mother but can include both identical and fraternal twins.


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 is one way in which identical and fraternal similar?

Identical and fraternal twins typically share many similar characteristics


Why might genetically identical twins have different phenotype?

This is because fraternal twins are simply two full siblings that happen to share the womb at the same time. There is no more reason for fraternal twins to be the same than there is for any brother/sister, brother/brother or sister/sister sibling set to be the same.


Are Brittany and Cynthia Daniel identical twins or fraternal twins?

Brittany and Cynthia Daniel are fraternal twins. Unlike identical twins, who share the same genetic makeup, fraternal twins arise from two separate eggs fertilized by two different sperm cells. The Daniel sisters have distinct physical features and differences in their appearances, which is characteristic of fraternal twins.


Do twins share the same placenta?

No, twins can either share the same placenta (monochorionic) or have separate placentas (dichorionic), depending on whether they are identical or fraternal twins.


Can twins share a placenta during pregnancy"?

Yes, twins can share a placenta during pregnancy. This occurs when identical twins share a single placenta, while fraternal twins each have their own placenta.


What type of study would a psychologist conduct to determine how much of a trait is influenced by genetics?

A psychologist would conduct a twin study to determine the heritability of a trait. By comparing the similarities between identical twins (who share 100% of their genes) with fraternal twins (who share 50% of their genes), researchers can estimate the genetic contribution to the trait.