Lab 3: mitosis and meiosis (from pages 29-44 of the student manual) 3a: mitosis mitosis in onions and whitefish cell replication time 3b: meiosis simulation sordaria, crossing over analysis 3a mitosis mitosis in onions and whitefish 1 mitosis is the process by which the nucleus is replicated by the separation of duplicated dna typically, nuclear division is followed by cytokinesis and the. Mitosis is constantly happening the meristems (or growth regions) of roots in plants mitosis occurs in four phases: prophase, metaphase, anaphase, and telophase in this lab, you will determine the relative length of time each phase of mitosis takes in the meristem of an onion root tip on a prepared slide. Title- mitosis abstract –for this lab there is no experiment to be done only questions to be answered in this experiment we will categorize and count the cells to compute the mitotic index of the total root area introduction – the purpose of this experiment is to answer questions associated with the onion root tip photos that are pictured in the lab. -while telophase is at the end of the line of mitosis, meiosis telophase i does not end the process -in mitosis telophase, daughter nuclei appear at the 2 poles of the cell then the chromatin fibers of each chromosome uncoils, and the nucleoli reappear. Essay mitosis and meiosis 926 words | 4 pages happen by either mitosis or meiosis, depending on what type of cell is invovled mitosis is a process by which a cell divides to form two daughter cells.
To learn how meiosis contributes to genetic variation, students analyze the results of crossing over and independent assortment students also compare and contrast meiosis and mitosis, and they learn how a mistake in meiosis can result in down syndrome or death of an embryo. To study the process of mitosis, i examined cells from the meristem root tissue of an onion, in which many cells are undergoing the process of mitosis mitosis is the process of nuclear division and cytokinesis to form two identical daughter cells. Meiosis lab quiz study play meiosis meiosis and mitosis identical in that, before the cell divides the chromosomes must be replicated during the s phase of interphase-different: end of mitosis-2 diploid daughter cells end of meiosis 4 genetically unique haploid daughter cells. Three mitosis and meiosis overview in this lab you will investigate the processes of mitosis and meiosis: 1 you will use prepared slides of onion root tips to study plant mitosis and to calculate the.
Umuc biology 102/103 lab 5: meiosis both mitosis and meiosis are involved with the dividing of cells and the splitting of dna between the new cells that are made they can also be parts of reproduction in meiosis i, tetrad form and crossing over occurs during prophase i this does not occur during mitosis. Mr andersen uses chromosome beads to simulate both mitosis and meiosis a brief discussion of gamete formation is also included do you speak another langua. Mitosis, or meiosis followed by fertilization (3a2 & sp 62) • the student is able to represent the connection between meiosis and increased genetic diversity necessary for evolution (3a2 & sp 71. Meiosis, on the other hand, is the process by which certain sex cells are created if you're male, your body uses meiosis to create sperm cells if you're female, it uses meiosis to create egg cells.
1 the cell cycle, or cell-division cycle, is the series of events that take place in a cell leading to its division and duplication (replication) that produces two daughter cells. 2 laboratory 8: mitosis and meiosis objectives after completing this lab you will be able to: 1 identify the stages of mitosis and meiosis 2 locate the stages of mitosis in onion root tips. Organisms use cell division to replicate, grow, and, in the case of a process called meiosis, to make gametes for reproduction this lab explores the processes of mitosis and meiosis through both.
Llc 2014 meiotic division without crossing over beads diagram: take pictures of your beads for each phase of meiosis i and ii without crossing overexperiment 1: following chromosomal dna movement through meiosis data tables and post-lab assessment trial 1. Cells divide and reproduce in two ways: mitosis and meiosis mitosis is a process of cell division that results in two genetically identical daughter cells developing from a single parent cell meiosis, on the other hand, is the division of a germ cell involving two fissions of the nucleus and. Onion root tip mitosis lab report onion root tip mitosis lab report visit discover ideas about cell cycle check out this called 'cell cycle' on play it now how to differentiate between mitosis and meiosis mitosis and meiosis share some similarities, but the processes have distinct differences as well gametes are produced through. The objectives of this lab exercise are for you to: • better understand the process and stages of mitosis • prepare your own specimens of onion root in which you can visualize all of the stages of mitosis. Mitosis is all somatic cells (body cells) in the body and meiosis is just the gametes (sex cells) conclusion: like before, meiosis is a complex process that is better shown than explained.
Mitosis, meiosis, and mendelian genetics learning goals: to follow the stages of mitosis and meiosis and calculate the mitotic index in onion root abnormalities that occur during meiosis lab background: mitosis is the mechanism by which the chromosomes of eukaryotes are. Ap lab #3 – mitosis and meiosis section i: during this lab, we were to observe and recognize mitosis in onion root tip and whitefish cells, estimating the time of mitotic stages, stimulate the stages of meiosis by using chromosome sets, and calculate the distance of genes from the centromere. Purpose: the purpose of the lab is to study and see how cell division happens meiosis and mitosis are key processes in life that divide cells without these processes, cells would not be able to duplicate and sperm and egg cells would not be able to form which would not allow the production of offspring. Pre-lab lecture objectives to be able to name and describe the phases of meiosis i & ii, with attention to the movement of chromosomes to be able to contrast the behavior of chromosomes during mitosis with the behavior of chromosomes to meiosis i & ii.
This is lab handout for biology course biology without lab work is impossible to understand this lab handout covers following points: mitosis and meiosis, cytokinesis, materials, observing prepared slides, root tips, total magnification, cell components, homologous chromosomes, chromatids, metaphase. Mitosis & meiosis -ap lab 3 introduction cells come from preexisting cells new cells are formed during cell division which involves both replication of the cell’s nucleus, karyokinesis, and division of the cytoplasm, cytokinesis. -lab activity -replicate mitosis/meiosis with string and chromosomes (beads) -look at prepared slides under microscope -using an onion root, find and draw the different stages on mitosis.
Lab 8 mitosis and meiosis (revised fall 2009) lab 8 - biol 211 - page 5 of 24 figure 4 models of a homologous pair of duplicated chromosomes for a heterozygous genotype, rrsince the two homologues are genetically different from each other they are represented in different colors 4. Both mitosis and meiosis are types of cell division in this lab, you will learn the differences between them after you have prepared the sperm and ovum, you will learn how in vitro fertilization is performed.