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Unformatted text preview: outer layer of cells and a group of cells inside the sphere. 3. Fraternal are the result of more than one egg being fertilized during an ovarian cycle. For this to happen, both ovaries must release an egg, or one ovary must release two eggs. Each zygote of fraternal twins and supertwins is formed from a different egg and sperm. As a result, the genetic information for fraternal twins is different for each individual, in the same way that brothers and sisters born at different times have different genetic materials....
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This note was uploaded on 09/21/2011 for the course BIOG 1110 taught by Professor Randywayne during the Spring '09 term at Cornell University (Engineering School).
- Spring '09