Wednesday, March 22, 2017

blog post 8


       1.Which part (anatomy) or characteristic of the Brassica oleracea plants seems to                      exhibit the most variation (greatest number of different forms)? Which part or                         characteristic of the Brassica oleracea plants seems to show the greatest range of                 variation (biggest difference between one extreme and its opposite)? Use and                       include data collected from multiple measurements to support your answer.
The part of the plant that I thought seemed to show the most variation between all of the Brassicas were the leaves. I thought this because all the brassica leaves were different in size, shape and the way it felt. The leaves on the Brassica were very wide and big compared to the rest of the plants in the garden. The size of one brassica leaf was 5inchs long and 6inches wide.

      2 .Using the terms that follow, explain why you think there is so much variability in the              domestic forms of Brassica oleraceatraits, selective breeding, artificial selection,            genes, descent with modification, natural variations, mutations
I think there are so may variation between the Brassica plant and the other plants in the garden.One the reasons being that since when something is sexually reproduced it always gets traits of both parents. Artificial selection play a big part in this plants life. scientist have been able to pick genes in the plant and modify it into something better. Selective breeding also can change the outcome, by sexual reproducing with other plants it can get new genes that help it adapt to the environment. Natural variations are very important because its mutations that randomly happen during sex cell division. this affects the plant because it can change the genes that get passed on, which could do good things for the plant but at the same time do bad things. descent with modification is passing of traits parents to offspring.

       3.Which part (anatomy) of the Brassica oleracea plants seems to be most consistently               the same in all of the examples in our garden, regardless of how extreme the                         differences between other parts of the same plants may be? Why do think this is so?             Again, use and include data collected from multiple measurements to support your               answer.
I think the traits the Brassica oleracea plants all have in common are the stem that leads ton leaf. I believe this because the data I collected and what I saw was that most every stem was long and slender and shared the same little details. I think there the same because stems are the one thing that doesn't need to change much when it comes to adapting to the environment. 

        4.What would plant breeders have to do in order to get the body part or characteristic               you described above (in your response to question #3) to become much different than           it is presently?

I think plant breeders would have to change the way the stem grows. To go in more detail I would say you would have to find a way to bracket the stem so it would grow shorter than the normal long lenght of the stem. To change the slender of the stem you would need to come up with some formula to make the stems grow thicker because i really don't know how you would make it thicker without using some sort of biotic.














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