Mitosis Internet Assignment

 

Mitosis - Internet Lesson

In this internet lesson, you will review the steps of mitosis and view video simulations of cell division. You will also view an onion root tip and calculate the percentage of cells at each of the stages of cell division.

Mitosis Tutorial at http://www.cellsalive.com/

On the left side of the screen is a navigation bar, click on the link to “MITOI! "ead the te#t on this page and view the animation, you can slow down the video by clicking step by step through the phases. $. In which stage does the following occur% &hromatin condenses into chromosomes ''''''''''''''''''''''''''''''''''''''''''' &hromosomes align in center of cell. ''''''''''''''''''''''''''''''''''''''''''' (ongest part of the cell cycle. '''''''''''''''''''''''''''''''''''''''''''  )uclear envelope breaks down. ''''''''''''''''''''''''''''''''''''''''''' &ell is cleaved into two new daughter cells. ''''''''''''''''''''''''''''''''''''''''''' *aughter chromosomes arrive at the poles. ''''''''''''''''''''''''''''''''''''''''''' &hromatids are pulled apart''''''''''''''''''''''''''''''''''''''''''' +atch the video carefully.. The colored chromosomes represent chromatids. There are two of each color because one is an e#act duplicate of the other. -- ow many chromosomes are visible at the beginning of mitosis/ '''''''''''''''' -- ow many are in each daughter cell at the end of mitosis/ '''''''''''''''''' -- The little green T shaped things on the cell are% '''''''''''''''''''''''''''' -- +hat happens to the centrioles during mitosis/ ''''''''''''''''''''''''''''' 0. Identify the stages of these cells%

Unformatted text preview: Name __ Mitosis -— Internet Lesson 1 In this internet lesson, you will review the steps of mitosis and meiosis and view video simulations of cell division. You will also view 5 an onion root tip and calculate the percentage of cells at each of the stages of cell division. http:_//www.cellsalive.com/ On the left side of the screen is a navigation bar, click on the link to “MITOSIS” Read the text on this page and view the animation, you can slow down the video by clicking step by step through the phases. 1. Which stage does the following occur Chromatin condenses into flf! W0 We 55 chromosomes Chromosomes align pm elcpmsfi in center of cell. fl—P——'——————‘ Longest part of the Interphew cell cycle. Nuclear envelope p {- me H, phc breaks down. Cell is cleaved into C ' . two new daughter 7 LlLOk’he 5 lg cells. Daughter 7‘ chromosomes "'n iffy/“‘6 ; arrive at the poles. Watch the video carefully. 2. The colored chromosomes represent chromatids. There are two of each color because one is an exact dUplicate of the other. --How many chromosomes are visible at the beginning of mitosis? __AA_QAL{._._ -- How many are in each daughter cell at the end of mitosis? rv U ad. --The little green T shaped things on the cell are: (,6an 'Ole, g -— What happens to the centrioles during mitosis? ’%QI_U-_fl—_— 3. Identify the stages of these cells: WWW.SCi .sdsu.edu/multimedia/mitosls/ *thls takes :a while to load, be patient. 1.Whatisaeul<aryote? Cell has (1 nuclei/36 /0r’l/&gl7/Z/q 2. What is a non—reproductive cell? _ Cell l-hC’J— cm L rep/advert; //Jrcr'n have c , 6115 Click on What is Mitosis after the page has loaded to View the animation and complete the following table. lPhase What happens during this phase? Interphase IMO/VA! copies l (“5 qpflgdgh‘e cg ..!'l.vgleal'\ (ENC! “W111i - FWMUW ° b New!“ _..?n9(__ 5??0.F"lzé_/._ Prophase Pirormetaphage |Metaphase Anaphase lTelophase Anbther Mitosis Animaifi'on ' " lCl" (UMDSflhv-cs reach Sahel: Go to www.johnkyrk.com/mitosis.html View the animation and sketch the cell in: Prophase ‘7 Meta phase I Telophase Onion, Rant 'i‘ip’ — onlng ActiVit-v -; http:/ lwww.biology.ari:zona.edulcell__bio/activities/cell_cycle /cell_cyc|e.html Read the introduction, then click the “next” button. You will have 36 cells to classify. When you’re finished, record your data in the chart below. Interphase Prophase Metaphase Anaphase Telophase Total ;Number of cells 53 ‘a’gfi I 0 3 Z / 36 , 2? l l | 1 _ r Percent of cells 5Q 100 % : (calculate: number of at 3 z —7 1 cells dlvided by total 3-6 5 I 1 cells x 100 ) ...
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