Drag the labels to their appropriate locations in the table below .Drag the pink

Question

Drag the labels to their appropriate locations in the table below .Drag the pink labels onto the pink targets in the table to indicate which mechanism of evolution is at work. Then drag the blue labels onto the blue targets to indicate the effect on allele frequencies Labels can be used once, more than once, or not at all View Available Hint(s) Reset Help natural selection Effect on allele frequencies Event or condition Mechanism genetic drift 1. During an extreme heat wave, plants with white flowers survive better. gene flow 2. A person uproots the five closest plants, which all happen to have white flowers frequency of purple allele increases 3. A storm kills many plants at random frequency of white allele increases 4. Plants with purple flowers attract more insects, which pollinate the plants allele frequencies s the same allele frequencies change but not predictably 5. Workers from a nearby greenhouse accidentally introduce white flower seeds into this population's habitat

Explanation / Answer

1a. Natural selection (Here, the trait provides a selective advantage)
1b. The frequency of the white allele increase (due to positive selection pressure)

2c. Genetic drift (Accidental change in the allele frequency)
2d. Since white flowers are uprooted (removed), the frequency of the purple flowers increases

3e. Genetic drift (Accidental change in the allele frequency)
3f. Allele frequencies change but not predictably

4g. Natural selection
4h. The frequency of purple flower increases as they are pollinated more.

5i. Gene flow
5j. The frequency of white allele increases

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