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3 cards from this section. Quick, good the night before a test.
What is the main purpose of selection in genetic engineering?
Think about why we would want to sort successful transformations.
What is a marker gene?
Consider what traits these genes confer to the cells.
What is the primary goal of the selection process in recombinant DNA technology?
Think about what happens after inserting DNA.
True or False: Marker genes are used to prevent untransformed cells from growing in selective media.
What trait allows survival?
Consider a situation where a scientist is trying to introduce a gene into a bacterial strain with antibiotic resistance. However, bacteria are also developing resistance. What implications does this have for the selection process?
Think about the relationship between selectable markers and natural evolution.
A researcher used a marker gene linked to color change in a plant population. Explain the benefits and drawbacks of using visual screening in this context.
What could lead to incorrect conclusions in visual screening?
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