Rarely, a chromosome's structure becomes altered when part of it undergoes duplication, deletion, insertion, __________, or __________.
Fill in the blank(s) with the appropriate word(s).
translocation; inversion
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Ehrlich and Raven hypothesized that if a new defensive trait evolves in a single plant species (or if a new trait to counteract a plant's defenses evolves in an herbivore species)
the appearance of that trait could result in a period of species diversification. Their hypothesis is also referred to as: A. the "diverge and converge" hypothesis. B. the "reverse and diverse" hypothesis. C. the "emit and commit" hypothesis. D. the "merge and diverge" hypothesis. E. the "escape and radiate" hypothesis.
A form of mutation associated with the expansion in copy number of a nucleotide triplet in or near a gene is called
a(n) ____________________ Fill in the blank(s) with the appropriate word(s).
Which of the following plates would have the highest percentage of bacteria that are expected to produce insulin?
(A) I only (B) III only (C) IV only (D I and III
Suppose that your roommate is on a 48-hour fast for food and drink. This means that she has no nutrients or liquids entering her system. What would happen to her blood pressure, and why? What hormones would be triggered by the lack of incoming liquids?
Explain how these hormones work and how the fast would affect her blood pressure and urine volume. What will be an ideal response?