Did the F2 generation look like how you predicted them to look?
The F2 didn’t look how I predicted, I figured the F1 would be the smaller generation but they were in fact larger than the F2. My colors were the same for all of the seeds while I expected them to be different shades.
Did the parent generation or the F2 generation grow faster?
The F2 generation grew faster than the others, the first generation barely grew at all but the F2 grew quick.
What might have hindered your plants' ability to thrive?
What hindered my ability to thrive was the lack of constant care we showed our plants and the general there isn’t a guarantee concept. Maybe it didn’t have enough air or was pushed off the white blanket a couple times so it didn’t receive much water. Other plants grew very close so maybe some domination occurred.
How do genetics and the environment affect the phenotype of an organism?
The genetics affect the phenotype by having different parent plants. If one is heterozygous and one homozygous, the offspring will be different. If the environment isn’t up to par this can too affect the outcome of the plant.
5. Which is a greater indicator of how an organism will look?
It will depend on the parents of the plant.
6. A summary of what stood out to you during this course and why.
What stood out to me was how the plants were dying once they were pregnant because I thought they’d need to stay alive to nourish their offspring but they actually die like a lot of insects do. I’ve never had to grow a plant but I’ve had my dad buy me flowers, I see that you have to give them exactly what you did in the beginning in order for them to survive the way you have to do anything in life or it will die.
Dexter Le
6/1/18
Biochemistry 2
Fast Plants Final Reflection
Throughout this semester, I have been observing the plants that our group planted in order to test Mendel’s theory of genetics and inheritance. We had observed two generations of plants, the F1 generation and the F2 generation. For our F1 generation, we had selected the seeds with the “Non-Purple Stem” and “Standard Purple Stem Hairy” traits. These plants would cross-pollinate and create seed pods which would serve as the primary seeds for the F2 generation.
There are also many variables that can play into the effect of each generation’s development such as the nursery and water. The growth of the plant can be severely affected by the environment. According to the United Kingdom Cannabis Social Clubs, the author states, “For plants to photosynthesis and grow they need constant air exchange to refresh the CO2 content of the surrounding air during both day and night periods”. In addition, water is a vital component to plants. Without water, the plants would not be able perform photosynthesis. These challenges affect the plant’s possible phenotypes. When I started analyzing the plant pictures, I have noticed that the development of the F2 generation was very similar to the F1 generation. A similarity was the the developing leaves of the F2 generation. Although the F2 generation did not have as many leaves in comparison to the F1 generation, the first weeks were very similar to the past generation. The parent generation grew faster whereas the F2 generation took some time in order to fully develop. I believe that the slow development of the F2 generation could possibly be the environment changes taking place outside. During the development of the parent generation, we were still going through Winter. Whereas, the F2 generation started development in late Winter and throughout Spring. In addition, the F2 generation was in development through an abnormally cold Spring which I believe could have played an effect on the growth of the generation.
Although in appearance, it seems as if some of the leaves in the F2 generation have different colors and patterns in comparison to the parent generation. We predicted that the F2 generation would have minor differences in comparison to the parent generation. Our prediction was correct because we have noticed colors that have been mixed with the F2 plants from the parent generation. The shape of the plants in the F2 generation resemble the parent generation almost exactly. After observing the pictures over and over, I have realized that the greatest indicator that determines the future of the plant’s appearance would have to be through development. In the F1 generation, you can see mini leaves growing during development. However, at maturity, the plant has retained the same color. This same indicator has also occurred on the F2 generation. At development, it is easy to determine the appearance of the plant as the leaves would grow and retain the color.
During this Last semester in Biochem 2. We have been observing fast plants (F1) and their fast plant offspring (F2). At the beginning of this semester, we grew 5 types of fast plants provided by Ms.Aziz.My group chooses to have : (ST)Standard Purple Stem Hairy, (NP)Non-Purple Stem, (YG)Yellow-Green Leaf, and (NG)Non-Purple stem yellow-green leaf with our surprise plant Type “B” that’s purple and green. These plants took about 3 weeks to grow before they were ready to be pollinated. Once they were all pollinated with the “B’ seed, they sprouted about 2 and a half months after. The F2 plants were not successful, because we didn’t look after them as much. Only 2 of the 4 plots had seedling germination, but it didn’t last more than two weeks before it shriveled up and died. Though before they died we saw that the sprout was a purple steam, which came from the B F1 plant.
In this mini project, we found that the F1 plants grew a lot faster than the F2 plants and that they were all able to reproduce a small amount. Some of the factors that could have hindered our F2 plant growth might be water consumption. One reason for this could have been because every time we check the plant it would be dry so we would add extra water. In the parent plant, each plot was moist and rarely dry, but in the F2 plants, the plots were almost always dry. Another factor that could have affected how they grow could have been the amount of light they received. The F1 plants were under the constant light while the F2 plants had a timer that only gave them about 6-7 hours of light each day.
Something that stood out to me in this mini-project was my ability to nature and care for the F1 plants. This is because the F1 plants were able to survive long enough to reproduce and make the second generation. Even with the F1 plants turning out good in every way, I realized that this is always not the case. With the F2 plants, you see that it was not the same and that it was only half the success. As you continue to plant seeds from each generation the outcome will be different/varied.
