The ________ class of immunoglobulins is the most common type and is the only type that can cross the placenta to pass on the mother's acquired immunity to the developing fetus
Fill in the blank(s) with correct word
IgG
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Use the principle of parsimony and molecular genetic data to choose a phylogenetic tree for your hypothesis of how the species were derived from the ancestor.
A. Tree 1 requires the most mutations therefore it would be the best choice.
B. Tree 2 requires 4 mutations while Tree 1 requires 6 mutations therefore Tree 2 would be the best choice.
C. Tree 2 requires the least mutations, therefore it would be the best choice.
D. Tree 2 requires 5 mutations while Tree 1 requires 7 mutations therefore Tree 2, with the least mutations, would be the best choice.
E. Tree 1 requires 7 mutations and Tree 2 requires 4 mutations, therefore Tree 2 would be the best choice.
What are the predicted phenotypes of the female children from the union of a woman who is heterozygous for
hemophilia and a man who has normal blood clotting characteristics? (Use the Punnett square to verify your answer.) a. all carriers b. 3 homozygous normal : 1 carrier c. 1 homozygous normal : 1 carrier
d. 1 hemophilia: 2 homozygous; normal : 1 carrier e. all hemophiliacs
Dr. Jane Doe is investigating how robins navigate during their yearly migration. Which of the following would NOT be a component of a scientific inquiry into this question?
A. Ignoring/discarding results that disagree with her favored hypothesis. B. Proposing one or more potential mechanisms of navigation. C. Exploring the current scientific literature on avian migration. D. Designing an experiment to test one of her proposed mechanisms.
Compare and contrast the two major categories of restriction enzymes.
What will be an ideal response?