Prophase 1 diagram8/22/2023 ![]() Use forceps to remove the root tip from the acid and place it on a microscope slide.Allow the roots to soak in the acid for 20 mins Put the root tip in a beaker and pour muriatic acid in it.Once the roots have grown, remove the onion from the water and cut about 5mm off the tips of the roots using a scalpel.Wait for a few days for the roots to grow Place 3-4 toothpicks inside the onion and put it in a jar of water with the onion root side down.Materials needed: A fresh onion, small beaker, Muriatic acid(10% HCL), 0.5% Toluidine blue, forceps, scalpel, needle, toothpick, distilled water, dropper, gloves, microscope slides and coverslips, dissecting microscope and compound light microscope. These stages include interphase, prophase, metaphase, anaphase and telophase. During this chromosomes pass through several stages of mitosis. This is followed by the process of mitosis which assures that each daughter cell receives one copy of each of the replicated chromosomes. During cell division, the two strands of the DNA double helix separate, and for each original strand, a new complementary strand is produced, for the process of DNA replication. Principle: Onion cells have 8 chromosomes. Use an analytical technique to determine the relative length of each stage of mitosis.Prepare specimens of onion roots to visualise all stages of mitosis.To understand the process and different stages of mitosis.Materials Required: Radish seeds, baker’s yeast, Petri dishes with agar, paper towels, bowls, gloves, microwave, notepad and pen.Īlso Read: Chemistry Project for Class 12: Topics & Sample Projects Format of Writing Biology Project for class 12Īim: To observe the different stages of mitosis in onion cells How Does Microwave Radiation Affect Different OrganismsĪim: To observe how microwave radiation affects fungi, bacteria, and plant life.Ībstract: Microwave ovens radiate high levels of energy resulting in heating up certain ingredients and fats in the food. Materials Required: Plastic zip bags, different types of foods(fruits, bread, cheese, meat), spray bottle, water. In-home mold grows over stale food, like bread, fruits, cheese, meat etc. Mold is a fungus that grows with the help of nutrients and water. Record germination results over a period of 4 days. Keep the seeds damn by placing them in between coffee filters. Procedure: Soak the bean seed in separate cups containing- distilled water, hydrogen peroxide, malt, humic acid, potassium nitrate, and fish emulsion. Materials Required: 5 sets of 10 bean seeds each, distilled water, hydrogen peroxide, malt, humic acid, potassium nitrate, fish emulsion, coffee filters, cups. The Speed of Sprouting SeedsĪim: To determine the speed of growth of bean seeds in different germinating solutions. Procedure: Place plant pots under different boxes let them grow and record their measurements. Materials Required: 5 boxes with different coloured transparencies(red, blue, green, yellow and clear)on top and front, seeds, potting plant, rulers. Materials Required: Universal indicator, litmus paper and different water samples.Ĭredits: BioWiz Does the Color of Light Affect Plant GrowthĪim: To observe how different light colours affect plant growth Likewise, a pH of more than 8.5 is too basic for the survival of most organisms. Below the pH of 4.5, fishes die and only a small number of acid-tolerant insects survive. If the pH is 3 to 5 it is too acidic for the survival of most organisms. The permissible pH of the water that is safe for our life and health is 6.5-8.5. It is important to monitor the chemical properties of the water we drink or use every day. Other Popular Biology Projects for Class 12īiology Projects for Class 12 Investigating the pH of a water sample.Format of Writing Biology Project for class 12.How Does Microwave Radiation Affect Different Organisms.Does the Color of Light Affect Plant Growth.Factors Affecting Nodule Formation in Legumes.To study the effect of pH on seed germination.
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