Question

What conclusion can be drawn from experiment I?

• A. Sea urchins would be better adapted if they had smaller eggs.
• B. Embryo cells are committed to different developmental fates on the basis of selection.
• C. Different cells of an embryo can have equal potential for development.
• D. A particular cell of an embryo always develops into the same structure.
• E. Cell divison ensures that both cells will develop identically.

Answer 1

The correct option is B Embryo cells are committed to different developmental fates on the basis of selection.

From the given diagrammatic representation for the experiment I, it can be observed that different cells of the embryo are subjected to different fates. This could be attributed to environmental selection.

So, the correct answer is 'Embryo cells are committed to different developmental fates on the basis of selection.'.