Shadowing Practice: Mitosis vs. Meiosis: Side by Side Comparison - Learn English Speaking with Video
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In biology, there are often vocabulary terms that sound pretty similar.
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Chromosome.
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Chromatid. Chromatin.
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Transcription.
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Translation.
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Mitosis. Meiosis.
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You probably have encountered this.
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When I was first learning about mitosis and meiosis, I learned them both separately first.
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And then I tried to figure out what was the same about them, what was different, why did they both matter?
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I would try to compare the stages by flipping through images.
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You know what would have helped me?
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A side by side comparison.
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And that’s what this video is.
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We assume you already have a background of mitosis and meiosis---if not take a look at our videos on them---but this video is a side by side comparison.
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Presented in a split screen.
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Mitosis on the left.
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Meiosis on the right.
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Both of these processes, along with the cytokinesis that follows them to split the cytoplasm, are involved in making new cells.
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Mitosis results in body cells.
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Meiosis results in sperm and egg cells, otherwise knows as the fancy term, gametes.
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Before we start mitosis and meiosis, let’s look at what you start with.
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Your starting cell in both mitosis and meiosis is diploid, written here as 2n.
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That means it has 2 sets of chromosomes---in humans, that’s including one set of 23 chromosomes from mom and one set of 23 chromosomes from dad.
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46 chromosomes total in humans.
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During interphase, the cell duplicates the chromosomes.
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When you duplicate 46 chromosomes, you still say there are 46 chromosomes as the newly duplicated portion is still attached at the centromere region---but there are actually 92 chromatids.
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Interphase isn’t part of mitosis or meiosis, but it’s a really important phase because it duplicates chromosomes before we get started.
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Just to point out, it’s really hard to draw 46 chromosomes which is how many humans have.
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We’re going to use 6 chromosomes in our diagrams when we illustrate what’s happening because it’s much easier to draw and visualize.
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Oh and just a fun fact: some insects have 6 chromosomes.
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Like mosquitoes.
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Unfortunately, I am not a fan of mosquitoes.
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But mosquitoes do mitosis and meiosis too.
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When learning the stages, we give the acronym PMAT which is helpful for understanding the stages.
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Both mitosis and meiosis go through these stages, but meiosis goes through them twice and therefore has a number next to each PMAT stage.
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We’re going to show some basic events for each PMAT stage, but please know there is way more detail to explore than what we can include in this quick video.
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Prophase in mitosis.
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Remember that “pro” can mean “before” and this stage comes before the others.
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The chromosomes are visible; in fact, we say they’re condensing which means they are thickening.
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Prophase I in meiosis.
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Happening here too, but the chromosomes are actually going to match up with their homologous pairs.
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The word homologous means that the chromosomes are approximately the same size and that they contain the same types of genes in the same locations.
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With each pair, one came from mom and one came from dad.
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In this formation, chromosomes can transfer their genetic information and exchange it between each other.
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It’s called crossing over!
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It can make for what we call recombinant chromosomes.
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Metaphase in mitosis.
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The nuclear envelope which had surrounded the nucleus was already disassembled before metaphase started.
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For metaphase, I like to remember the M for middle because in this stage the chromosomes line up in the middle of the cell in a single file line.
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Metaphase I in meiosis.
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The chromosomes are in the middle as well, but they’re still going to be in pairs in the middle of the cell so it’s not a single file line.
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Anaphase in mitosis.
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I like to think as the A is for “away.” The chromatids are pulled away by the work of the spindles.
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They are moving to the opposite sides of the cell.
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Anaphase I in meiosis.
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Same thing but in this case, it’s the chromosomes- not chromatids- being pulled away to opposite sides of the cell.
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Telophase in mitosis and telophase I in meiosis.
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The chromosomes are at the complete opposite ends and new nuclei are forming on each side to make these two new cells.
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And they are starting to surround the chromosomes on both sides as this will eventually form 2 cells.
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Cytokinesis follows to split the cytoplasm to complete the actual dividing of the cell.
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So at the end of mitosis and cytokinesis, we end with two identical, diploid cells.
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In humans, they would both have 46 chromosomes.
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This is great for organism growth---growing requires making more cells after all---or replacing damaged cells.
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On to meiosis II!
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Prophase II.
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Chromosomes condensing in both cells.
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It’s not going to be as eventful as it was in prophase I because they are not going to have homologous pairs and crossing over.
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Metaphase II.
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M for middle, but this time, the chromosomes are in a single file line.
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Similar to how metaphase looked in mitosis.
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Anaphase II.
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Think A for away.
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This time, though, it’s actually the chromatids that are getting pulled away.
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Telophase II.
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Chromosomes are at the complete opposite ends and new nuclei are forming on each side to make new cells.
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Cytokinesis will follow meiosis II to completely split the cytoplasm.
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We are now finished with meiosis: and we end with four non-identical cells.
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Gametes. Males makes sperm cells in meiosis and females make egg cells in meiosis.
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These gametes are haploid, meaning they have half the number of chromosomes as the original starting cell.
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In the case of humans, the resulting cells would each have 23 chromosomes.
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By the way, when a sperm and egg cell combine, it results into a diploid cell, a fertilized egg otherwise known as a zygote, which will then start a series of divisions using mitosis to give rise to a brand new organism.
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Well, that’s it for the Amoeba Sisters, and we remind you to stay curious!
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Vocabulary and speaking notes for this lesson
This speaking lesson is built on the video “Mitosis vs. Meiosis: Side by Side Comparison”. The speaker keeps coming back to these words: chromosome, cell, meiosis, mitosis, stage. This video has 82 sentences and 989 words to shadow. The speech runs for 6:13. The speaker talks at a natural 159 words per minute, close to everyday conversation. Only 77% of the words are among the 3,000 most common in English, so the vocabulary is demanding.
Key vocabulary in this video
15 words from the video worth learning, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| duplicate verb | /ˈd(j)uː.plɪˌkeɪt/ | To make a copy of. |
| mosquito noun | /məsˈki.toʊ/ | A small flying insect of the family Culicidae, the females of which bite humans and animals and suck blood, leaving an itching bump on the skin, and sometimes… |
| nucleus noun | /ˈnuː.kli.əs/ | The core, central part of something, around which other elements are assembled. |
| identical adjective | /ɪˈdɛntɪkl̩/ | Bearing full likeness by having precisely the same set of characteristics; indistinguishable. |
| surround verb | /səˈɹaʊnd/ | To encircle something or simultaneously extend in all directions. |
| organism noun | /ˈɔɹ.ɡəˌnɪz.əm/ | A discrete and complete living thing, such as animal, plant, fungus or microorganism. |
| compare verb | /kəmˈpɛɚ/ | To assess the similarities and differences between two or more things [“to compare X with Y”]. Having made the comparison of X with Y, one might have found it… |
| curious adjective | /ˈkjʊɹ.i.əs/ | Tending to ask questions, or to want to explore or investigate; inquisitive; (with a negative connotation) nosy, prying. |
| helpful adjective | /ˈhɛlp.fl̩/ | Furnishing help; giving aid; useful. |
| newly adverb | /ˈnuli/ | Very recently/lately; in the immediate past. |
| translation noun | /tɹænzˈleɪʃən/ | The conversion of text from one language to another. |
| visible adjective | /ˈvɪzɪb(ə)l/ | Able to be seen. |
| remind verb | /ɹəˈmaɪnd/ | To cause one to experience a memory (of someone or something); to bring to the notice or consideration (of a person). |
| gene noun | /d͡ʒiːn/ | A theoretical unit of heredity of living organisms which may take several values and (in principle) predetermines a precise trait of an organism's form… |
| fancy noun | /ˈfæn.si/ | The imagination. |
Phrasal verbs you will hear
| Word | Meaning |
|---|---|
| cross over verb | To pass from one side or area, physical or abstract, to another. |
| go through verb | To travel from one end of something to the other. |
| pull away verb | To move ahead. |
| figure out verb | To come to understand; to discover or find a solution; to deduce. |
| flip through verb | Synonym of thumb (“to turn the pages of (a book) in order to read it cursorily”). |
| point out verb | To identify among a group of similar subjects, or in a scene where the subject might not be readily seen or noticed, with a gesture of the body. |
Grammar in this video
The structures the speaker uses most, with the exact words from the video:
| Structure | In the video |
|---|---|
| Passive voice be + past participle — the focus is on what happens, not who does it | are involved · is still attached · was already disassembled |
| Relative clauses who / which + clause — extra information about a person or thing | chromosomes which is · PMAT which is · condensing which means |
Pronunciation to watch
The speaker uses 5 contractions and reduced forms, such as they're, we're, isn't. Say them the short way, as you hear them.
- The “sh” and “zh” sounds: translation /tɹænzˈleɪʃən/, transcription /tɹænˈskɹɪpʃən/, visualize /ˈvɪʒuəˌlaɪz/
- Long words — get the stress right: organism /ˈɔɹ.ɡəˌnɪz.əm/, biology /baɪˈɑ.lə.d͡ʒi/, vocabulary /vəˈkæb.jə.lə.ɹi/, cytokinesis /ˌsaɪtoʊkɪˈniːsɪs/, cytoplasm /ˈsaɪtəʊˌplæzəm/
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Start at 0.75× speed, shadow it sentence by sentence, then go back to normal speed once it feels easy.
- Record yourself and compare with the original, paying attention to words like duplicate, mosquito, nucleus.
What is the Shadowing Technique?
Shadowing is a science-backed language learning technique originally developed for professional interpreter training and popularized by polyglot Dr. Alexander Arguelles. The method is simple but powerful: you listen to native English audio and immediately repeat it out loud — like a shadow following the speaker with just a 1–2 second delay. Unlike passive listening or grammar drills, shadowing forces your brain and mouth muscles to simultaneously process and reproduce real speech patterns. Research shows it significantly improves pronunciation accuracy, intonation, rhythm, connected speech, listening comprehension, and speaking fluency — making it one of the most effective methods for IELTS Speaking preparation and real-world English communication.