Unit 4: Mitosis and Meiosis by Maya Cortes https://padlet.com/mcor6705/icndry3y1wft3mci The Process of Cellular Reproduction en-us 2021-11-21 07:25:36 UTC 2024-05-27 16:12:08 UTC hello@padlet.com https://padlet.net/icons/png/1f9a0.png For the background mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904144132 Vector Tradition. (n.d.). Bacteria, microbes, cute germs and viruses isolated cartoon vector characters with funny faces. Smiling pathogen microbe monsters, bacteries and viruses with big eyes, cells with teeth and tongues. 66,900 BEST Cell Cartoon Images. photograph. Retrieved November 16, 2021, from https://stock.adobe.com/search?k=cell+cartoon&asset_id=329015791. ]]> 2021-11-21 07:44:53 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904144132 Cellular Reproduction mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904144916 2021-11-21 07:46:16 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904144916 Cellular Reproduction mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904145102 2021-11-21 07:46:33 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904145102 Mitosis: The Amazing Cell Process that Uses Division to Multiply! (Updated) mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904639949 2021-11-21 17:34:30 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904639949 Cell Division mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904644942 Mitosis is essentially one single cell replicating itself and creating daughter cells that are exact replicas of the original singular cell (YourGenome 2021)! This happens to replace older worn out cells that are going to die soon (YourGenome 2021), fun fact (I dont have a source for this I know it off the top of my head) your body is brand new every 7 years! Meaning the body you had at 14 was a brand new body and not the body you had at 7.


YourGenome. (2021, July 21). What is mitosis? Facts. Retrieved November 18, 2021, from https://www.yourgenome.org/facts/what-is-mitosis. ]]> 2021-11-21 17:40:54 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904644942 Meiosis (Updated) mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904645563 2021-11-21 17:41:41 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904645563 Interphase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904655697 The DNA completely replicates itself and there then becomes two identical sets of chromosomes (YourGenome 2021). Two centrosomes (each with their own pair of centrioles) sit outside the nucleus waiting for cell division (YourGenome 2021). In preparation for cell division microtubules extend from the centrosomes (YourGenome 2021).

YourGenome. (2021, July 21). What is mitosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-mitosis. 

]]> 2021-11-21 17:53:41 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904655697 Prophase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904656316 The chromosomes move into an X-shaped structure. Each chromosome comes equipped with two 'sister' chromatids, that have identical genetic information (YourGenome 2021). The chromosomes group up so that both copies of chromosome 1 are together and so on and so forth. The membrane around the nucleus then dissolves which releases the chromosomes (YourGenome 2021). The mitotic spindle (which is basically the microtubules and some other proteins) extends across the cell moving to opposite sides of the cell (YourGenome 2021).


YourGenome. (2021, July 21). What is mitosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-mitosis. 
]]> 2021-11-21 17:54:17 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904656316 Mitosis vs. Meiosis: Side by Side Comparison mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904658237 2021-11-21 17:56:35 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904658237 Metaphase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904665865 The chromosomes form up end-to-end along the center of the cell (YourGenome 2021). The mitotic spindle fibers are now extending towards the center from the outer edges. The mitotic spindle fibers then attach themselves to each of the chromatids closest to them (YourGenome 2021).



YourGenome. (2021, July 21). What is mitosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-mitosis. 
]]> 2021-11-21 18:05:31 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904665865 The Cell Cycle (and cancer) [Updated] mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904667922 2021-11-21 18:08:00 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904667922 Anaphase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904710180 The chromatids then start to pull on the miotic spindle to maneuver everything onto each respected side before the actual separation occurs (YoungGenome 2021).

YourGenome. (2021, July 21). What is mitosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-mitosis. ]]> 2021-11-21 19:02:34 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904710180 Telophase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904712634 Both sides of the cell are identical copies of one another. The nuclei membrane begins to form (YourGenome 2021). A single cell then pinches the middle and essentially creates the two cells, this is known as cytokinesis (YourGenome 2021).


YourGenome. (2021, July 21). What is mitosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-mitosis. ]]> 2021-11-21 19:05:59 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904712634 Cell Division mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904733994 Instead of once, in meiosis, the original cell divides twice to create the daughter cells. The daughter cells are haploid meaning theyve only got half the number of chromosomes as the parent cell (YoungGenome 2021). Meiosis produces our sex cells or gamates, so what we pass on to our children (YoungGenome 2021).

YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 19:34:26 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904733994 Meiosis I: Interphase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904743288 The DNA completely replicates itself and there then becomes two identical sets of chromosomes (YourGenome 2021). Two centrosomes (each with their own pair of centrioles) sit outside the nucleus waiting for cell division (YourGenome 2021). In preparation for cell division microtubules extend from the centrosomes (YourGenome 2021).

YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 19:46:23 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904743288 Meiosis I: Prophase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904745814 The chromosomes move into an X-shaped structure. Each chromosome comes equipped with two 'sister' chromatids, that have identical genetic information (YourGenome 2021). The chromosomes group up so that both copies of chromosome 1 are together and so on and so forth. The membrane around the nucleus then dissolves which releases the chromosomes (YourGenome 2021). The mitotic spindle (which is basically the microtubules and some other proteins) extends across the cell moving to opposite sides of the cell (YourGenome 2021).

YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 19:49:49 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904745814 Meiosis I: Metaphase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904747284 The chromosomes form up end-to-end along the center of the cell (YourGenome 2021). The mitotic spindle fibers are now extending towards the center from the outer edges. The mitotic spindle fibers then attach themselves to ONLY one chromosome of EACH pair (YourGenome 2021).

YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 19:51:39 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904747284 Meiosis I: Anaphase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904749260 The chromosomes then start to pull on the miotic spindle to maneuver everything onto each respected side before the actual separation occurs (YoungGenome 2021).

YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 19:54:18 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904749260 Meiosis I: Telephase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904751769 The chromosomes completely move to the opposite sides of the cell (YoungGenome 2021). Now that both sides of the cell are identical copies of one another. The nuclei membrane begins to form (YourGenome 2021). A single cell then pinches the middle and essentially creates the two cells, this is known as cytokinesis (YourGenome 2021).

YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 19:57:55 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904751769 Meiosis II: Prophase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904754478 Now we have two cells each with 23 chromosomes. The chromosomes then form the same x shapes seen in meiosis I. The membrane around the daughter cell dissolves (YoungGenome 2021). The centrioles double and the miotic spindle forms again (YoungGenome 2021)>

YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 20:01:26 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904754478 Meiosis II: Metaphase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904755499 In each cell, the chromosomes form up end-to-end along the center of the cell (YourGenome 2021). The mitotic spindle fibers are now extending towards the center from the outer edges. The mitotic spindle fibers then attach themselves to each of the chromatids closest to them (YourGenome 2021)

YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 20:02:57 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904755499 Cell Division mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904756379 Instead of once, in meiosis, the original cell divides twice to create the daughter cells. The daughter cells are haploid meaning theyve only got half the number of chromosomes as the parent cell (YoungGenome 2021). Meiosis produces our sex cells or gamates, so what we pass on to our children (YoungGenome 2021).

YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 20:04:15 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904756379 Meiosis II: Anaphase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904757397 The chromosomes then start to pull on the miotic spindle to maneuver everything onto each respected side before the actual separation occurs (YoungGenome 2021). The chromatids that were previously together are now singular and by themselves (YoungGenome 2021).

YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 20:05:44 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904757397 Meiosis II: Telephase mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904759757 The chromosomes completely move to the opposite sides of the cell (YoungGenome 2021). Now that both sides of the cell are identical copies of one another. The nuclei membrane begins to form (YourGenome 2021). A single cell then pinches the middle and essentially creates the two cells, this is known as cytokinesis (YourGenome 2021). After cytokinesis is finally completed, there are four 'granddaughter cells' left, each of these cells are haploids (YoungGenome 2021). In women one cell is an egg while the other three end up being 'polar bodies'. These small cells don't get to become eggs like their larger sister (YoungGenome 2021). In men all four cells get to become sperm.


YourGenome. (2021, July 21). What is meiosis? Facts. Retrieved November 21, 2021, from https://www.yourgenome.org/facts/what-is-meiosis#:~:text=Meiosis%20is%20a%20process%20where,in%20males%2C%20eggs%20in%20females.&text=These%20four%20daughter%20cells%20only,parent%20cell%20%E2%80%93%20they%20are%20haploid. ]]> 2021-11-21 20:09:04 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904759757 Cellular Reproduction mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904763029 2021-11-21 20:13:30 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904763029 How does meiosis explain Mendels Law? mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904773455 Mendels Law of Independent Assortment BASICALLY says that the daughter and granddaughter cells separate in a way so that all of them only get one allele (Libretext 2020). Meiosis goes through the cellular division process twice and each granddaughter cell gets a singular portion of the DNA for sexual reproduction purposes. Mendels law essentially explains in depth why meiosis happens the way it does.

Libretexts, B. (2020, December 1). 12.3C: Mendel's law of segregation. Biology LibreTexts. Retrieved November 21, 2021, from https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Book%3A_General_Biology_(Boundless)/12%3A_Mendel's_Experiments_and_Heredity/12.3%3A_Laws_of_Inheritance/12.3C%3A_Mendels_Law_of_Segregation. ]]> 2021-11-21 20:28:38 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904773455 Mendel’s Law of Independent Assortment Explained mcor6705 https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904776044 2021-11-21 20:32:26 UTC https://padlet.com/mcor6705/icndry3y1wft3mci/wish/1904776044