Question 8 (5 points) On your last trip to Rocky Point you discover of a new spe

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Question 8 (5 points) On your last trip to Rocky Point you discover of a new species of mud snail. You travel to Rocky Point to study the new species. You perform embryology experiments to study how cells differentiate in the new species. You wish to show that, the early embryo undergoes mosaic development and that cleavage of the zygote produces two daughter cells that cannot regulate their cell fate. Which of the following experiments, and results, would demonstrate demonstrate lack of equivalence of the two cells in the zygote? Experiment: Isolate the two cells and grow them to the larval stage; Result: the two cells will each develop into only partial larvae. Experiment: Isolate the two cells and grow them to the larval stage; Result: The two cells will each develop into complete, although smaller, larvae. Experiment: Grow the two-cell embryo to the larval stage, and then separate the cells; Result: each cell is able to form a new, complete larva. Experiment: Grow the two-cell embryo to the larval stage, and then separate the cells; Result: essentially none of the larval cells can form a new, complete larva. Save

Explanation / Answer

During mosaic development when the one celled zygote divides into two the distribution of cellular components to two daughter cells are not equal. One will carry half the information and other will carry the other half of information for development. so if you isolate the two cells and grow them to larval stage they will develop into only partial larvae

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