Maria and Juanita are identical twins. Therefore, they have ____.
a. the same phenotype and the same genotype
b. the same phenotype but not necessarily the same genotype
c. the same genotype but not necessarily the same phenotype
d. neither the same genotype nor the same phenotype
Question 2
Ocean inherited genes that raise the risk of her developing bipolar disorder. She lives a relatively stress-free life, however, and shows no symptoms of the disorder. The risk is part of Ocean's ____, and the normal behavior is part of Ocean's ____.
a. phenotype; genotype
b. phenotype; phenotype
c. genotype; phenotype
d. genotype; genotype
Monozygotic versus Dizygotic Twins
Directional selection pushes a phenotype one way or another.
Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania)
Identical twins (monozygotic twins) have the same sex and share a single genotype.
A partial pedigree of a woman with the Bombay phenotype