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A Married Couple Is Unable to Conceive on Their Own

question 7

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A married couple is unable to conceive on their own. The wife's younger single sister freely volunteers to donate a viable egg to the couple. What difficulty might Callahan have with this seemingly altruistic arrangement?


Definitions:

Homeotic Genes

Genes that control the development of anatomical structures in various organisms by determining the identity of body parts.

Transcription Factors

Proteins that bind to specific DNA sequences to control the rate of transcription of genetic information from DNA to messenger RNA.

Enzymes

Biological molecules that act as catalysts to speed up chemical reactions in living organisms.

Eukaryotes

Organisms whose cells contain a nucleus enveloped by a membrane, including animals, plants, fungi, and protists.

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