What is the type of the two infants? - ProProfs
     

What is the type of the two infants?
Initially only expecting a girl, Sarah and Tom were surprised and delighted to learn she was carrying twins; she ultimately delivered a girl and a boy.



A. Monozygotic twins
B. Dizygotic twins
C. Identical twins
D. Supernal twins

This question is part of Chapter 9: Intelligence

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1 Answer

vladimir_spach

Vladimir_spach

Answered on Apr 21, 2018

Dizygotic twins

Because the twins are different sexes, they are fraternal, or dizygotic, twins; they developed from two different eggs. Identical twins, or monozygotic twins, would have to be the same sex since they come from the splitting of the same egg. Supernal twins is a meaningless term. ####

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