Which of the following factors influences the rates of MZ twinning?
A) ethnicity
B) a history of MZ twins on the mother's side of the family
C) maternal age
D) The rate of MZ twins is virtually the same in all segments of the population.
D) The rate of MZ twins is virtually the same in all segments of the population.
2.1-43________ are the type of twins formed when two eggs are fertilized by two different sperm cells.
A) Monozygotic twins
B) Dizygotic twins
C) both A and B
D) neither A nor B
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Indicate whether the statement is true or false
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a. artistic c. conventional b. realistic d. intellectual
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Answer the following statement true (T) or false (F)
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