Shannon and Frankie just found out that they are pregnant. They are interested in the odds of having twins. You can tell them that twins occur in about 1 out of every ____ births in the United States.
A) 10
B) 20
C) 30
D) 40
Correct Answer:
Verified
Q19: _ is the process of cell division
Q20: Researchers have estimated that _ to _
Q21: When an individual is heterozygous for a
Q22: _ increases genetic variability and accounts for
Q23: Dizygotic twins:
A) are also known as identical
Q25: Chase and Carson share the same genotype,
Q26: Xavier has dark curly hair and facial
Q27: The genes within each chromosome can be
Q28: In about _ of fraternal twin pairs,
Q29: Maddox and Maecy both carry alleles for
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