Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 23, Problem 23.9PS
Scrambled Eggs. Unfertilized starfish eggs can be induced to produce foreign proteins either by injecting them with mRNA encoding the protein of choice or by directly injecting them with purified molecules. What do you predict would happen in the following cases, and why?
(a) “Caged calcium,” a combination of calcium ions and a chelator, is injected into an egg. A flash of light is then used to induce the chelator to release its Ca2+ in a small region of the egg.
(b) mRNA for IP3 receptors that do not allow Ca2+ release is injected, and then the egg is fertilized.
(c) Fluo3, a molecule that fluoresces in response to elevated Ca2+ levels, is injected into normal eggs, which are then fertilized.
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Chapter 23 Solutions
Becker's World of the Cell (9th Edition)
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