Straighterline Anatomy and Physiology 1 Lab BIO201L Lab 3 Mitosis and Meiosis Worksheet 2023

Lab 3 Mitosis and Meiosis BIO201L Straighterline Anatomy and Physiology 1 Lab BIO201L Lab 3 Mitosis and Meiosis Worksheet 2023 Student Name: Click here to enter text. Access Code (locat ed on the lid of your lab kit): Click here to enter text. Pre-Lab Questions 1. What are chromosomes made of? Chromosomes are structures composed of DNA and proteins known as chromatin. Within chromatin, there is a component called a nucleosome. 2. Com pare and contrast mitosis and meiosis. Both meiosis and mitosis start with only two chromosomes and involve the creation of new cells. However, meiosis does not involve crossing over and synapsis, whereas mitosis, which occurs in somatic cells, does. Mito sis produces body cells, while meiosis produces gametes. 3. Cancer is a disease related to uncontrolled cell division. Investigate two known causes for these rapidly dividing cells and use this knowledge to invent a drug that would inhibit the growth of canc er cells. The main factors influencing cell division are genetic and environmental influences. To address cancerous cells, I would develop a medication that specifically targets the receptors on those cells, preventing their replication. Experiment 1: Ob servation of Mitosis in a Plant Cell Table 1: Mitosis Predictions I estimate that the duration of interphase will be approximately Predictions 21 hours, the mitotic phase will last for 3 hours, and cytokinesis will take around 45 minutes. Supporti ng Evidence Among the phases of mitosis, interphase is the longest and can last from eighteen to twenty -four hours. Lab 3 Mitosis and Meiosis BIO201L Table 2: Mitosis Data Chosen Image Click here to enter text. Stage Number of Cells in Total Number of Cells Calculated % of Time Stage Spent in Stage Interphase 18 24 75 Prophase 2 24 8.3 Metaphase 0 24 0