The answer I think is, some diseases the person might have.
<span>Both the populations of Drosophila seem to have the same gene for foraging behavior
Therefore, the </span><span>alternative hypothesis which is made far less likely by having three R and K lines, rather than one of each is:
</span><span>The difference between the R and K lines is the result of environmental differences in the food availability of their habitats.
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Answer: Option B - There are more than four genes that determine this trait.
Explanation:
The tobacco plant species have its leaf colour with characteristics that changes gradually over a range of values, which refers to continuous variation.
Note that continuous variation keep expressing gene variants in successive generations of the tobacco plants, that differs from the parents. So, there are MORE THAN four genes controling the expression of varying phenotypes in the leaves
Several months after split-brain surgery, the number of incidents of conflicts between the two hemispheres diminishes. Conflicts between the two hemispheres eventually diminish because the left hemisphere suppresses the right hemisphere's interference.
A&C