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cell divison part 1~1

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cell divison part 1~1

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Cell Cycle & Cell Division - Meiosis I - Prophase I - Part - 1

In prophase I of meiosis crossing over takes place which results in exchange of genetic material.

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Cell Cycle & Cell Division - Mitosis - Part 1

Mitosis takes place in somatic cells and in germinal cells during multiplication phase. It is also known as equational division as the chromosome number is same in both the daughter cells and the parent cell.

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Cell Division - Part 1 - Mitosis



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A (rather simple) video demonstrating mitosis. There will be more videos on topics relating to molecular biology soon! :)
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Cell Cycle & Cell Division - Cell Cycle - Part 1

Cell cycle includes preparatory phase and a division phase. The phases inter phase and M phase.

To help students search for a topic easily, all the channel videos have been archived chapter wise on

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CELL CYCLE AND CELL DIVISION (EASY WAY) / NCERT/ PART 1

Hi friends,
here I am with another video. This video will help

CELL CYCLE AND CELL DIVISION (EASY WAY) / NCERT/ PART 1

In upcoming videos I will teach you KINGDOM ANIMALIA / criteria for classification.
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Biology Cell Cycle & Cell Division part 1 (Why cell division) CBSE class 11 XI

Biology Cell Cycle & Cell Division part 1 (Why cell division) CBSE class 11 XI

Mitosis: The Amazing Cell Process that Uses Division to Multiply! (Updated)

Updated Mitosis Video. The Amoeba Sisters walk you through the reason for mitosis with mnemonics for prophase, metaphase, anaphase, and telophase. Expand details to see table of contents.👇 Video handout here:

Table of Contents:
Why is Mitosis Important? 0:44
Why Don't You Want Cells Dividing all the Time? 2:00
Interphase (occurs before mitosis) 2:23
DNA and Chromosomes 2:55
Chromosome Replication 4:07
PMAT Mitosis Stages 5:30
Cytokinesis (actual splitting of cell) 7:30

We appreciate the feedback we get for what we need to clarify or should have added. Here is a clarification (also pinned in comments): (1) We mention mitosis as a type of cell division. To be specific, it's a division happening within the cell - in the nucleus. But we do not introduce the nucleus until later on in video. Mitosis is specifically the division happening of the nucleus whereas cytokinesis follows to do the actual splitting of the cell (mentioned at 7:30). (2) Our video is intended to focus on animal cells (as drawn) - specifically human cells - as we use human chromosome numbers. We wish we had clarified that more as we appreciate the feedback that the statements, Mitosis makes body cells. Meiosis makes gametes. has some big exceptions such as plants. (3) In metaphase, we do not draw a nucleus (6:09), because we mention it already has been disassembled. Disassembly of the nuclear membrane (envelope) occurs at the end of the previous stage. Many texts will state this is during prometaphase, a stage in between prophase and metaphase. In this short video, we do not include prometaphase. We only mention that the nucleus is no longer there by the time it's metaphase. (4) Notice our illustration in anaphase also includes a text box that says sister chromatids separate at 6:37. It's important to understand that chromosomes are moved away in anaphase, but as the text box notes, realize they are separated by the pulling apart of sister chromatids. This is especially important when comparing mitosis to meiosis I---as you can see our comparison video (which has more detail) here:

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The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching biology at the high school level. For more information about The Amoeba Sisters, visit:

We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook:

We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines and YouTube's policy center We also reserve the right to remove comments with vulgar language.

Music is this video is listed free to use/no attribution required from the YouTube audio library

We have YouTube's community contributed subtitles feature on to allow translations for different languages. YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are thankful for those that contribute different languages. If you have a concern about community contributed contributions, please contact us.

mitosis 3d animation |Phases of mitosis|cell division

Phases of mitosis:This animation demonstrates the stages of mitosis in an animal cell.

Mitosis is the process in which a eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. The word mitosis means threads, and it refers to the threadlike appearance of chromosomes as the cell prepares to divide. Early microscopists were the first to observe these structures, and they also noted the appearance of a specialized network of microtubules during mitosis. These tubules, collectively known as the spindle, extend from structures called centrosomes — with one centrosome located at each of the opposite ends, or poles, of a cell. As mitosis progresses, the microtubules attach to the chromosomes, which have already duplicated their DNA and aligned across the center of the cell. The spindle tubules then shorten and move toward the poles of the cell. As they move, they pull the one copy of each chromosome with them to opposite poles of the cell. This process ensures that each daughter cell will contain one exact copy of the parent cell DNA.


Interphase: Cells may appear inactive during this stage, but they are quite the opposite. This is the longest period of the complete cell cycle during which DNA replicates, the centrioles divide, and proteins are actively produced. For a complete description of the events during Interphase, read about the Cell Cycle.

Prophase: During this first mitotic stage, the nucleolus fades and chromatin (replicated DNA and associated proteins) condenses into chromosomes. Each replicated chromosome comprises two chromatids, both with the same genetic information. Microtubules of the cytoskeleton, responsible for cell shape, motility and attachment to other cells during interphase, disassemble. And the building blocks of these microtubules are used to grow the mitotic spindle from the region of the centrosomes.

Prometaphase: In this stage the nuclear envelope breaks down so there is no longer a recognizable nucleus. Some mitotic spindle fibers elongate from the centrosomes and attach to kinetochores, protein bundles at the centromere region on the chromosomes where sister chromatids are joined. Other spindle fibers elongate but instead of attaching to chromosomes, overlap each other at the cell center.

Metaphase: Tension applied by the spindle fibers aligns all chromosomes in one plane at the center of the cell.

Anaphase: Spindle fibers shorten, the kinetochores separate, and the chromatids (daughter chromosomes) are pulled apart and begin moving to the cell poles.

Telophase: The daughter chromosomes arrive at the poles and the spindle fibers that have pulled them apart disappear.

Cytokinesis: The spindle fibers not attached to chromosomes begin breaking down until only that portion of overlap is left. It is in this region that a contractile ring cleaves the cell into two daughter cells. Microtubules then reorganize into a new cytoskeleton for the return to interphase.

Types of Cell division ||Meiosis part-1|| Cell Division || Vinay Biology

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Watch this video to know More about Cell division


After watching this video you will get to know


watch more videos

1.sporulation in amoeba

2.secondary growth in dicot stem part-1

3. secondary growth in dicot stem part-2

4.Sliding filament theory

5.Fertillisation in cockroach

6.Factors affecting Hardy wienberg principle

7.Ecological Succession

8. Hardy wienberg principle

9.Linkage and Recombination

10.Polymerase Chain Reaction




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How you can easily distinguish between Mitosis &Meiosis.
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Cell Divison Part 3~1

Cell Division

Paul Andersen explains how cells duplicate through the process of cell division. Prokaryotic cells (like bacteria) duplicate through a process of binary fission. Eukaryotic cells (like you) duplicate body cells through mitosis and create sex cells through meiosis.

Intro Music Atribution
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound:
Creative Commons Atribution License

All images are either Public Domain or Creative Commons Attribution Licenses:
Egelberg. English: Dividing Cells Imaged by Quantitative Phase Contrast Microscopy Using the HoloMonitor M3 from Phase Holographic Imaging., November 5, 2012. Own work.
File:Binary Fission.png. Wikipedia, the Free Encyclopedia. Accessed March 1, 2013.
File:Eukaryota Diversity 2.jpg. Wikipedia, the Free Encyclopedia. Accessed March 1, 2013.
File:Major Events in Mitosis.svg. Wikipedia, the Free Encyclopedia. Accessed March 1, 2013.
File:Meiosis Overview.svg. Wikipedia, the Free Encyclopedia. Accessed March 1, 2013.
File:PhageExterior.svg. Wikipedia, the Free Encyclopedia. Accessed March 1, 2013.
File:Sperm-egg.jpg. Wikipedia, the Free Encyclopedia. Accessed March 1, 2013.
File:Three Cell Growth Types.png. Wikipedia, the Free Encyclopedia, November 23, 2012.
Mattosaurus. English: These Are e Coli., August 4, 2009. Own work.
Ungerer, Bernhard. English: 3D Render of a Male Skeleton with Body Shape in Three Views. Resolution: 1600 x 1200 Px, 150 Dpi., June 22, 2008. Own work.

Mitosis | Cells | MCAT | Khan Academy

Mitosis is how cells divide! Learn what happens in all the phases of mitosis: prophase, metaphase, anaphase, and telophase.

Watch the next lesson:

Missed the previous lesson?

MCAT on Khan Academy: Go ahead and practice some passage-based questions!

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Mitosis: The Phases, Part 1 of 2, from Thinkwell Biology

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Cell Cycle and Mitosis [3D Animation]

Cell Cycle and Mitosis animation
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Cell Cycle and Cell Division Part 1

CELL DIVISION / MITOSIS (EASY WAY) / NCERT/ PART 2

Hi friends, here I am with another video. This video will help

CELL DIVISION / MITOSIS (EASY WAY) / NCERT/ PART 2

Part 1 of cell division :-

ALL THE BEST for your exam.

Give your opinions, feedback, in the COMMENT section below.

LIKE if this has helped you and SHARE with your friends to motivate them as well.

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CBSE Class 11 Biology || Cell Cycle and Cell Division || Full Chapter || By Shiksha House

CBSE Class 11 Biology, Cell Cycle and Cell Division, Full Chapter, By Shiksha House
For Notes, MCQs and NCERT Solutions, Please visit our newly updated website

This is the 3d animated lesson of CBSE Class 11 Biology, Cell Cycle and Cell Division, Full Chapter, By Shiksha House with explanation which is very interesting and easy to understand way of learning by Shiksha House. Shiksha House is an Education related Channel to teach CBSE, ICSE, NCERT and state board lessons. Shiksha Houase uploads videos of all Subjects of Secondary, Higher secondary Education. Shiksha House teaches in very interesting way with easy to understandable 3d Animated Video Lessons. For
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Chromosome Numbers During Division: Demystified!

Confused with how chromosome numbers change in mitosis and meiosis? The Amoeba Sisters walk you through the mystery of chromosome and chromatid counting in mitosis and meiosis. Video has handout: 👇Expand details for table of contents.

Tale of Contents:
Number of Chromosomes in Humans 0:53
Basics of a Chromosome 1:03
Chromosome vs. Chromatid 1:31
Counting Chromosomes in Interphase 2:13
Mitosis Chromosome Chart 3:08
Meiosis Chromosome Chart 4:02

Support us on Patreon!

Our FREE resources:
GIFs:
Handouts:
Comics:

Connect with us!
Website:
Twitter:
Facebook:
Tumblr:
Pinterest:
Instagram:

Visit our Redbubble store at

The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching biology at the high school level. For more information about The Amoeba Sisters, visit:

We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook:

We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines and YouTube's policy center We also reserve the right to remove comments with vulgar language.

Music is this video is listed free to use/no attribution required from the YouTube audio library

We have YouTube's community contributed subtitles feature on to allow translations for different languages. YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are thankful for those that contribute different languages. If you have a concern about community contributed contributions, please contact us.

CELL DIVISION / MEIOSIS (EASY WAY) / NCERT/ NEET

Hi friends, here I am with another video. This video will help

CELL DIVISION / MEIOSIS (EASY WAY) / NCERT/ NEET

CELL DIVISION MITOSIS:-

CELL CYCLE:-

CELL DIVISION NUMERICALS:-

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