PowerPoint Presentation

Wrong!!!Back

Animal Cell

MainDoesnt have a cell wall like a plant cell and has more of a round shape.Like the plant cell replication occurs in the nucleus.What is the longest stage of mitosis?ProphaseInterphaseAnaphase Cytokinesis QuizMain

8. How many students can be assigned to a specific disorder? See if you read the instructions! 123No limit

QuizMainBefore cell division can start the cell must undergo interphase. During interphase the cell makes copies of all its genetic information.Interphase has 3 stagesG1 phase: Normal cell function and storing up proteins and nutrients.S (synthesis) phase: cell duplicates its DNA.G2 Phase: resuming normal growth and preparing for division.NOTE: Interphase is the longest phase of mitosisInterphase

NextMain

S Phase:Previous In prophase, the chromatin condenses into discrete chromosomes. The nuclear envelope breaks down and spindles form at opposite "poles" of the cell.Chromatin fibers become coiled into chromosomes with each chromosome having two chromatids joined at a centromere.Mitotic spindle begins to form.Prophase

MainNextPrevious Broken Down in two parts:Prometaphase:Transition from prophase to metaphase.Nuclear envelope breaks up and the mitotic spindles can move in.Kinetochores develop on the chromosomes so the chromosomes can attach to mitotic spindle.Metaphase:Each chromosome is moved to a plane at the center of the spindle.

MetaphaseMainNextPrevious Five stages of mitosis1. Interphase 2. Prophase3. Metaphase4. Anaphase5. Telophase Mitosis (Cell Cycle)MainNextPlease choose a genetic disorder caused by DNA mutations from the list provided more on next pageCome up to me to sign up for a mutation only 2 students per option!!

Angelman syndrome Canavan diseaseColor blindnessCystic fibrosis Down syndromeDuchenne muscular dystrophy

MutationsNextMainThe chromatids separate at the centromeres and each chromatid is pulled to the opposite pole.MainAnaphase

Each chromosome breaks into two parts (chromatid). Both pieces are exact copies of each other (sister chromatids). NextPrevious Here is a video to better show anaphase.Anaphase cont.

MainNextPrevious In telophase, the new daughter nuclei and nuclear envelopes start to reform and the chromosomes uncoil.Telophase

MainCleavage furrow also occurs during this step indicating the beginning of cytokinesis.

NextPrevious Cytokinesis: cell pinches together and divides into two separate cells.Telophase

Animal CellPlant CellIn plants, cytokinesis begins with a series of vesicles that form at the equator of the cell, which subsequently join until the cell is divided in two. MainNextPrevious

Telophase VideoMainNextPrevious A quick video to show all the stages in action together.Mitosis Video Review

MainPrevious Prophase- the first stage of mitosis or meiosis in eukaryotic cell division, during which the nuclear envelope breaks down and strands of chromatin form into chromosomes. Prometaphase- The stage of mitosis or meiosis in which the nuclear membrane disintegrates, the centrioles reach the poles of the cell, and the chromosomes continue to contract.Metaphase- the stage in mitosis or meiosis in which the duplicated chromosomes line up along the equatorial plate of the spindle.

Previous MainDefinitions cont.NextAnaphase- the stage in mitosis or meiosis following metaphase in which the daughter chromosomes move away from each other to opposite ends of the cell. Telophase- the final stage of cell division, in which daughter cell nuclei form around chromosomes at opposite ends of the dividing mother cell.Cytokinesis- the division of the cell cytoplasm that usually follows mitotic or meiotic division of the nucleus.

MainDefinitions cont.Previous NextChromosomes-any of several threadlike bodies, consisting of chromatin, that carry the genes in a linear order.Centromere-a specialized structure on the chromosome, appearing during cell division as the constricted central region where the two chromatids are held together and form an X shape. Chromatids-one of two identical chromosomal strands into which a chromosome splits longitudinally preparatory to cell division.

MainDefinitions cont.Previous NextMitotic spindle-The fusiform figure characteristic of a dividing cell, consisting of microtubules, some of which become attached to each chromosome at its centromere and provide the mechanism for chromosomal movement.nuclear envelope- the double membrane surrounding the nucleus within a cell. DNA-deoxyribonucleic acid: an extremely long macromolecule that is the main component of chromosomes and is the material that transfers genetic characteristics in all life forms, constructed of two nucleotide strands coiled around each other in a ladderlike arrangement

MainDefinitions cont.Previous HaemophiliaKlinefelter syndromeSickle-cell diseaseTaySachs diseaseTurner syndromeCrohn's disease

MutationsMainPrevious NextAfter you have chosen the genetic disorder from the list you must write a 2 paragraph paper (8-10) sentences.Paper must include:Definition of the disease How it is acquiredTreatment or cures if anyHow it ties into mitosisUse time in computer lab to research. MutationsMainPrevious http://www.edupic.net/Images/Mitosis/metaphase.png http://library.thinkquest.org/C004535/metaphase.html http://www.edupic.net/Images/Mitosis/anaphase.png http://youtu.be/k3ECNH1MSCw http://img.sparknotes.com/figures/D/d756b5b73abe2974f3521a828791899f/telophase.gif http://drugline.org/img/term/cytokinesis-3890_3.JPG http://youtu.be/lH_PuokSV48 http://youtu.be/VlN7K1-9QB0 http://dictionary.reference.com/ http://www.bing.com/Dictionary/search?q=define+telophase&qpvt=Telophase+Definition&FORM=DTPDIA Credits Cont.MainPrevious Nexthttp://en.wikipedia.org/wiki/List_of_genetic_disordersClip Art http://ritter.tea.state.tx.us/rules/tac/chapter112/ch112c.html Credits Cont.MainPrevious Nexthttp://ritter.tea.state.tx.us/rules/tac/chapter112/ch112c.html 112.34. Biology, Beginning with School Year 2010-2011 (One Credit).(a) General requirements. Students shall be awarded one credit for successful completion of this course. Prerequisites: none. This course is recommended for students in Grade 9, 10, or 11.(c) Knowledge and skills. (5) Science concepts. The student knows how an organism grows and the importance of cell differentiation. The student is expected to:(A) describe the stages of the cell cycle, including deoxyribonucleic acid (DNA) replication and mitosis, and the importance of the cell cycle to the growth of organisms;(B) examine specialized cells, including roots, stems, and leaves of plants; and animal cells such as blood, muscle, and epithelium;(C) describe the roles of DNA, ribonucleic acid (RNA), and environmental factors in cell differentiation; and(D) recognize that disruptions of the cell cycle lead to diseases such as cancer.

TEKSMainPrevious