Mitosis & Meiosis Review! Be sure you study: –Notes –Labs –Worksheets –Note-cards Study with a buddy!

Could you label this diagram?

What makes up the cell cycle? Interphase –Cells life: General Functions (long) –G 1 phase, S phase, G 2 phase Mitosis: division of nucleus –Cells life: Reproduction (short) Prophase Metaphase Anaphase Telophase Cytokinesis: division of cytoplasm Interphase

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? INTERPHASE What is unique about this phase? A NUCLEUS IS VISIBLE & DNA is in CHROMATIN form.

MITOSIS QUESTIONS… What type of cells result from mitosis? –Body Cells (Somatic), used for growth and repair How can you describe the number of chromosomes in these types of cells? –Diploid, 2n, or paired How many cells result from mitosis? –Two, identical to the parent cell

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? PROPHASE What is unique about this phase? NUCLEUS IS FUZZY VISIBLE AND CHROMATIN HAS SHORTENED AND THICKENED INTO CHROMOSOMES

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? METAPHASE What is unique about this phase? CHROMOSOMES ARE LINED UP AT EQUATOR

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? ANAPHASE What is unique about this phase? SISTER CHROMATIDS PULL AWAY FROM EACH OTHER

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? TELOPHASE What is unique about this phase? CELL MEMBRANE PINCHES IN

Is this a plant cell or an animal cell? ANIMAL CELL What “phase” is this cell in? CYTOKINESIS What is unique about this phase? TWO IDENTICAL CELLS HAVE BEEN FORMED

Is this a plant cell or an animal cell? PLANT CELL What phase is this cell in? INTERPHASE What is unique about this phase? A NUCLEUS IS VISIBLE & DNA is in CHROMATIN form.

Is this a plant cell or an animal cell? PLANT CELL What phase is this cell in? PROPHASE What is unique about this phase? NUCLEUS IS FUZZY VISIBLE AND CHROMATIN HAS SHORTENED AND THICKENED INTO CHROMOSOMES

Is this a plant cell or an animal cell? PLANT CELL What phase is this cell in? METAPHASE What is unique about this phase? CHROMOSOMES ARE LINED UP AT EQUATOR

Is this a plant cell or an animal cell? PLANT CELL What phase is this cell in? ANAPHASE What is unique about this phase? SISTER CHROMATIDS PULL AWAY FROM EACH OTHER

Is this a plant cell or an animal cell? PLANT CELL What phase is this cell in? TELOPHASE What is unique about this phase? A CELL PLATE HAS FORMED; 2 NUCLEI

MEIOSIS QUESTIONS… What type of cells result from meiosis? –Reproductive Cells 4 sperm 1 egg, 3 polar bodies How can you describe the number of chromosomes in these types of cells? –Haploid, n, or unpaired How many cells result from meiosis? –Four unique cells

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? INTERPHASE What is unique about this phase? A NUCLEUS IS VISIBLE & NUCLEAR MATERIAL IS IN CHROMATIN FORM

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? PROPHASE I What is unique about this phase? NUCLEUS IS FUZZY, TETRADS FORM (PAIRED HOMOLOGUES)

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? METAPHASE I What is unique about this phase? TETRADS LINE UP AT EQUATOR

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? ANAPHASE I What is unique about this phase? HOMOLOGUES SEPARATE

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? PROPHASE II What is unique about this phase? HOMOLOGUES PREPARE TO LINE UP; 2 CELLS!

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? METAPHASE II What is unique about this phase? HOMOLOGUES LINE UP

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? ANAPHASE II What is unique about this phase? CHROMATIDS PULL AWAY FROM ONE OTHER

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? TELOPHASE II What is unique about this phase? 4 NUCLEI REFORM AND MEMBRANES PINCH IN

Is this a plant cell or an animal cell? ANIMAL CELL What phase is this cell in? CYTOKINESIS What is unique about this phase? 4 GENETICALLY UNIQUE CELLS ARE FORMED

Can you identify these phases? Prophase I Prophase IIProphase

Can you identify these phases? AnaphaseMetaphase IIMetaphase I

Can you identify these phases? TelophaseTelophase II

A human karyotype 23 pairs of chromosomes! A real pair!

Good Luck! Your test is tomorrow… Be sure you study: –Notes –Labs –Worksheets –Note-cards Study with a buddy!