BIO 101 – Fast Plants 1 – Growth and genetics: Gizmos 2021/2022: Student Exploration: Fast Plants Growth and Genetics

BIO 101 – Fast Plants 1 – Growth and genetics: Gizmos 2021/2022: Student Exploration: Fast Plants Growth and Genetics. Vocabulary: allele, dominant allele, Fast Plants, gene, genetics, genotype, heterozygous, homozygous, offspring, phenotype, pollen, pollinate, Punnett square, recessive allele, trait Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What do plants need to survive? Plants need nutrients from the soil, water, air and light. 2. How do plants reproduce? Plants reproduce sexually through the fusion of male and female gametes in the flower. Plants have two types called asexual and sexual. Gizmo Warm-up Several common vegetables, including Bok choy, napa cabbage, and turnips, are varieties of a plant called Brassica rapa. Fast plants are a rapid-cycling variety of Brassica rapa that was developed at the University of Wisconsin. These plants have short growing cycles and are ideal for classroom use. In the Fast Plants® 1 – Growth and Genetics Gizmo, you will learn about the life cycle and genetic traits of Fast Plants. In the Gizmo, drag seed packet A to container 1 and seed packet B to container 2. Click Play ( ), and then Pause ( ) after about 10 simulated days. 1. A plants traits are its characteristics. Drag the magnifying glass over container 1. Describe the traits of these plants. All of them have purple stems and green leaves 2. Drag the magnifier over container 2. How do these plants differ from the container 1 plants? Rather than having purple stems and green leaves , they have green stems and lighter green almost yellow leaves This study source was downloaded by from CourseH on :24:10 GMT -05:00 2019 Activity A: The Fast Plants® life cycle Get the Gizmo ready:  Click Reset ( ). Plant seeds A in container 1.  Turn on Show hints. Introduction: Fast Plants® are grown in wicking systems, typically made of nested plastic containers. The larger container is the water reservoir. Water from the reservoir travels through the wick into the soil, where roots draw the water into stems and leaves. Question: How do Fast Plants grow and reproduce? 1. Grow: With seeds A in container 1, click Play. Click Pause on day 17. A. Is the container full of water? NO If not, drag the water bottle to the container. B. Do the plants look like they are too crowded? Yes If so, use the tweezers to pull out a few plants and discard them in the waste hole. 2. Pollinate: The bee stick should be active at the bottom of the Gizmo. A bee stick is a dead bee glued on a toothpick. Drag the bee stick through the flowers. A. What happens to the appearance of the bee stick as it is dragged through the flowers? It becomes brighter and more yellow , it is showing the pollen on the bee. B. The bee’s hairy thorax (middle section) is covered in pollen. Pollen is produced by male reproductive organs in the flower. Each grain of pollen contains a sperm cell. C. What happens to the flowers? The Flowers change color into an orange. The flowers become fertilized The orange color represents flowers that are pollinated, or fertilized. (In reality, pollinated flowers do not turn orange. This is done to show pollination in the Gizmo.) 3. Grow: Turn on Auto-watering. This will keep the containers full of water automatically. Click Play, and then Pause around day 24. Use the magnifier to observe the plants. A. What do you notice happening at the top of the plants? At the top of the pants flowers start to grow. Pollinated flowers develop into long, thin seedpods. B. Click Play, and then Pause at day 38. Is the container filled with water? YES This study source was downloaded by from CourseH on :24:10 GMT -05:00 2019 This is not a mistake. At this time, the auto-watering system turns off so the plants can dry out and the seeds do not rot. (Activity A continued on next page) Activity A (continued from previous page) 4. Harvest: Click Play and let the simulation run until it ends on day 44. Fast Plants® are unique because they have very quick life cycles, going from seed to mature seedpod in only six weeks. Grab an empty seed bag and place it on the counter. Then, use the tweezers to carefully grab one seedpod from the dried plants. (This may take a few tries.) Release the seedpod over the empty bag. A. What happens? The mature seeds go into the seed bag after the plant being dried out The seed bag now contains seeds that are the offspring of the parent A seeds. B. Click on the seed bag. Label the seed bag F1 and write a description. C. Move the seed bag to the shelf. Congratulations! You have completed the life cycle of a Fast plant. 5. Compare: Click Reset. Plant the A seeds in container 1 and the offspring seeds in container 2. Click Play and then Pause after 10-15 days. Use the magnifier to observe the plants in each container. A. How do the offspring plants compare to the parent plants? The offspring plants are completely the same to the parent plants B. Do all of the offspring plants have the same traits? Yes they all have green stems and green leaves. For assistance with online tutoring and help with assignments for all modules with guaranteed pass contact alphatutors: