Refer to the Table Showing Results from an Experiment in Which

question 179

Multiple Choice

Refer to the table showing results from an experiment in which researchers used CRISPR technology to knock out various genes from a plant.They then examined plant stem height (in centimeters, with calculated means) and seed production (number of seeds, with calculated means) with each treatment.(Note: The "x" marks genes that have been knocked out.) What is the most likely role of the product of gene A?

• A) It is a stimulator of both stem growth and seed production.
• B) It is a stimulator of stem growth and an inhibitor of seed production.
• C) It is an inhibitor of stem growth, and it stimulates seed production.
• D) It is an inhibitor of stem growth and has no discernable effect on seed production.
• E) It has no discernable effect on either trait.

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