Grab a whiteboard / marker & answer the following questions Grab a whiteboard / marker & answer the following questions. Turn in Friday’s worksheet (Snurfle wksht) Where are chromosomes located? How many cells do you think are in our body? (Be specific, “a lot” will not be accepted as an answer) What happens if one cell in neck, arm, liver, bone, or stomach dies? What process does my body undergo to create new cells if I grow or get injured?

Grab a whiteboard / marker & answer the following questions. Where are chromosomes located? Nucleus How many cells do you think are in our body? (Be specific, “a lot” will not be accepted as an answer) What happens if one cell in neck, arm, liver, bone, or stomach dies? What process does my body undergo to create new cells if I grow or get injured?

Grab a whiteboard / marker & answer the following questions. Where are chromosomes located? Nucleus How many cells do you think are in our body? (Be specific, “a lot” will not be accepted as an answer) 100 trillion + What happens if one cell in neck, arm, liver, bone, or stomach dies? What process does my body undergo to create new cells if I grow or get injured?

Grab a whiteboard / marker & answer the following questions. Where are chromosomes located? Nucleus How many cells do you think are in our body? (Be specific, “a lot” will not be accepted as an answer) 100 trillion + What happens if one cell in neck, arm, liver, bone, or stomach dies? My body will recognize that I need to create an identical cell to replace the cell I lost. What process does my body undergo to create new cells if I grow or get injured?

Grab a whiteboard / marker & answer the following questions. Where are chromosomes located? Nucleus How many cells do you think are in our body? (Be specific, “a lot” will not be accepted as an answer) 100 trillion + What happens if one cell in neck, arm, liver, bone, or stomach dies? My body will recognize that I need to create an identical cell to replace the cell I lost. What process does my body undergo to create new cells if I grow or get injured? M I T O S I S!!!!!

Mitosis Review Video: https://www.youtube.com/watch?v=ZEwddr9ho-4 Hand Dance  Cytokinesis

Mitosis VS Meiosis Directions: At your table In groups of 2 - 3 On 1 white board

Mitosis VS Meiosis In 1 minute: Write down as many differences you see in these two pictures! ANY DIFFERENCE!! Winner gets candy Directions: At your table In groups of 2 - 3 On 1 white board

2 somatic (body cells) 4 gametes

2 somatic (body cells) 4 gametes

2 somatic (body cells) 4 gametes

2 somatic (body cells) 4 gametes

2 somatic (body cells) 4 gametes

2 somatic (body cells) Diploid Haploid 4 gametes

Term describing cells that only have one set of a homologous chromosome pair Haploid Diploid

Term describing cells that have both sets of a homologous pair Term describing cells that only have one set of a homologous chromosome pair Haploid Diploid

Term describing cells that only have both sets of a homologous pair Term describing cells that only have one set of a homologous chromosome pair Haploid Diploid

Haploid Diploid

46 chromosomes 46 chromosomes 23 chromosomes

46 chromosomes Haploid Diploid 46 chromosomes 23 chromosomes

Why do you think gametes (sex cells) need to undergo two cell divisions?

Prophase Metaphase Starting cell Mom Dad Size dictates the homologous pairs Starting cell 1 2 1 2 1 2 1 2 1 2 Prophase 1 1 Metaphase 2 2

Starting cell 1 2 1 1 Anaphase 2 2

Telophase and Cytokinesis Starting cell 1 2 1 1 1 1 2 2 2 2 Telophase and Cytokinesis

Mitosis PMAT Meiosis PII MII AII TII

On your own, in your spiral (right) On your own, in your spiral (right). Place the following terms into a Mitosis Vs Meiosis Venn Diagram Involves 1 cell division Starts with Diploid parents cell Prophase, metaphase, anaphase, telophase Results in 2 diploid cells Creates gametes Cells are identical In metaphase II homologous chromosomes line up Involves 2 cell divisions Prophase II metaphase II anaphase II telophase II Ends with cytokinesis Results in 4 haploid cells Creates somatic cells In metaphase, individual chromosomes line up

1st Test & Spiral Check will be on block day (Wednesday/Thursday)! Mitosis vs. Meiosis Drawing worksheet Choose two colors And walk yourself through the steps of Mitosis Answer the exit ticket Question and get my initials to receive your grade. 1st Test & Spiral Check will be on block day (Wednesday/Thursday)!