The characteristic that I noticed had the greatest variation with in the brassica plants in the garden with leaves. For example, the length and width of each of the different plants leaves all had very different forms. All of these leaves are very different in their length and width.
The characteristic that I found to have the greatest range was the height of all the the different brassica plants. These pictures show 5 different brassica plants with a range of height of 28 inches- 10 inches.
Question #2
There is so much variability in the traits of domesticated Brassica because of selective breeding over several generations. Selective breeding or artificial selection, is where a person over several hundreds or thousands of years chooses the natural variations from each plant and only lets these plants germinate. The changes that each plant obtains over time represents descent with modification. This means that mutations that are favored become most common genes in the gene pool
Question #3
Out of all of the brassica plants in the garden, they all shared one charicertics, their flowers. I believe this because for organisms to be considered a species they have to be able to reproduce and flowers on plants contain their reproductive parts. So, if they have the same looking parts that means they would fit together to breed together. This would make it easier to recognize who they can mate with and identify the same species.
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Question #4
In order for plant breeders to change the plants flowers, they would need to alter their DNA. Since all of the plants their species(aka the only plants they can breed with) have the same yellow small flowers, there is no way to cross breed it and make it different.
In order for plant breeders to change the plants flowers, they would need to alter their DNA. Since all of the plants their species(aka the only plants they can breed with) have the same yellow small flowers, there is no way to cross breed it and make it different.
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