READ THIS LAB BEFORE COMING TO CLASS. Introduction: In this lab exercise we will study the effects of an abiotic (non-living) factor on seed germination (the beginning of seed growth which is usually seen with emergence of a small white root). We will also be stressing the use of graphing skills. We will use a common seed available in grocery stores, red kidney beans. These plants do not live near the sea normally.
8. Then average the height of each cup. V. Data Chart: Cup Number Number of Seeds Number of Sprouts Average Height 1 1 1 24.70 cm 2 2 2 27.25 cm 3 4 4 27.50 cm 4 8 8 25.23 cm Graph: VI. Analysis From the data collected throughout conducting the Mung Beans Experiment, I can assume that mung beans grow better in areas more populated with other mung beans. The cup with only one mung bean seed in it produced the shortest plant of the four cups.
relative mass using beans September 18, 2012 Variables The independent variable for this experiment was beans. The dependent variable, that depends on the independent to change, was the mass per bean. The control does not change and this experiment it was the amount of beans (60). Purpose The purpose of this lab experiment was to lean about the average mass and the relative mass using different types of beans for representations. The safety precautions for this lab was to wear goggles while in the laboratory and to wash hands after the lab.
The red bean represents a Y chromosome. 4)Close your eyes and pick one bean from each cup to represent how each parent contributes to a sex chromosome and a fertilized egg. 5)In your table, record the color of each bean and the sex of an individual who would carry this pair of sex chromosomes.Also record how many X-linked alleles he individual has. Put the beans back in the cups they come from. 6) Determine whether the individual would have colorblindness.
The molecular basis of the smooth (alleles: SS or Ss) and wrinkled (alleles: ss) pea seeds involves the gene that codes for the enzyme phosphorylase. Peas that inherited the genotype “ss” (wrinkled peas) have an inactive form of the enzyme. Peas that are Ss have smaller amounts of the enzyme than SS seeds (not necessarily true because it is
Dependence of Man on the Environment Melvin Thomas, Jr. SCI 207 Prof. Bo Sosnicki March 13, 2011 Population Biology Lab 1. Make a hypothesis about how you think the two species of Paramecium will grow alone and how they will grow when they are grown together. My hypothesis on how the two species of Paramecium will grow alone is that one of the species whether it is Aurelia or Caudatum, will be able to thrive among the same community and the other will not be able to survive as long without finding a secondary resource of food. When they are grown together, I am not sure if they will be able to co-exist. I believe that the one that is able to live off of a secondary food will thrive while the other essentially has a small option and will not do so well.
Form a hypothesis for why each affects seed germination. 3. To germinate the beans, place one folded paper towel, moistened but not soaking wet, into the 5 x 8in bag. Place 10 beans in a horizontal line on the paper towel (between the paper towel and bag). 4.
If the plant collects too much water, it will cause the roots to rot, resulting in the plants not being able to receive enough oxygen from the soil. Therefore, because a plant cannot grow if it doesn’t have healthy roots, the balanced amount of water will result in the best seed germination. Independent variable: - The amount of water used when planting the 60 seeds (bean sprouts) Dependent variable: - The number of seeds that germinate Controlled variable: - The amount of petri dishes- 3 petri dishes will be used in this experiment - The amount of cotton wool- Each petri dish will have 1g of cotton wool laid out on the bottom - The type of seed/bean- There will be use of only one type of seed/bean throughout this whole experiment - The number of seeds- There will be 20 seeds/beans in each of the petri dishes The location where the petri dishes- The petri dishes with the seeds/beans and cotton wool will be kept in the open cupboards of the science classroom, throughout this whole experiment - The method- The same method will be repeated several times, just with different amounts of water (5mL, 10mL, 15mL) Materials and Equipment: - 3 petri dishes (The three dishes where the bean sprouts will be grown, kept and watered) - 60 seeds (bean sprouts), 20 seeds (bean sprouts) in each of the three petri dishes - 3g of cotton wool (1g of cotton wool will be laid on the bottom of each of the three petri dishes) - 30mL of water
CHAPTER 4 HW Due: Wednesday 2/15/11 Answer ALL questions by hand (i.e., show your work): 1. List three methods of assigning probabilities. (1 point) Equally likely outcomes, relative frequency, intuition 2. A botanist has developed a new hybrid cotton plant that can withstand insects better than other cotton plants. However, there is some concern about the germination of seeds from the new plant.
The independent variable for this lab is the ECB infestation, and the dependent variable will be the yield of corn. Knowing their designed resistance to infestation, the transgenic corn varieties will provide the greatest yields under any ECB infestation. Procedure 1. Select a type of seed variety to plant into the three pots for each of the two growth chambers. 2.