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Lydia Fairchild and the Case of Human Chimeras

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Lydia Fairchild and the Case of Human Chimeras

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Questions and Answers

What term is used to describe a human being composed of cells that are genetically distinct?

Vanishing twin

Transplant

Absorption

Chimera (correct)

How did Lydia Fairchild become the biological aunt of her own children?

Through an artificial transfusion

By having a vanishing twin

After a transplant operation

By absorbing her twin zygote before birth (correct)

What percentage of twin pregnancies are estimated to involve a vanishing twin?

25%

50%

10%

36% (correct)

How do most twins likely disappear in cases of natural chimerism?

They vanish without a trace Signup and view all the answers

What is the primary reason why individuals may not be aware of their genetic twin presence?

The lost sibling's genetic presence is usually not revealed unless by chance Signup and view all the answers

What is the main focus of the text regarding human chimeras?

The philosophical implications of human chimeras Signup and view all the answers

Which statement best describes the distinction between human chimeras and conjoined twins?

Conjoined twins have the same genetic cell line. Signup and view all the answers

Why do the journalistic headlines about Fairchild's case challenge a standard presumption of modern Western culture?

Because they question the one-person-per-body assumption. Signup and view all the answers

What aspect distinguishes personhood from merely having a particular type of genetic material according to the text?

Structural organization of genetic material Signup and view all the answers

How does the example of conjoined twins challenge the assumption about bodies correlating one-to-one with people?

By illustrating that conjoined twins develop different personalities despite sharing a body. Signup and view all the answers