Phases of Meiosis: A detailed visual guide to the stages of meiosis, including prophase I, metaphase I, anaphase I, telophase I, prophase II, metaphase II, anaphase II, and telophase II, with corresponding illustrations and descriptions.
Diagram illustrating the phases of meiosis, showing eight stages with labeled images and descriptions.
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Show Answer Key & Explanations
Step-by-step solution for: Meiosis worksheet fillable - Phases of Meiosis Name of Phase ...
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Show Answer Key & Explanations
Step-by-step solution for: Meiosis worksheet fillable - Phases of Meiosis Name of Phase ...
Let’s carefully match each phase of meiosis with its correct description based on what happens during that stage.
We’ll go one by one:
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1. Prophase I
→ In this phase, homologous chromosomes (one from mom, one from dad) come together and pair up to form a tetrad. During this pairing, they exchange parts — that’s called crossing over.
✔ Matches description: *“Homologous chromosomes pair up and form tetrad. Crossing over occurs”*
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2. Anaphase I
→ Here, the spindle fibers pull the homologous chromosome pairs apart to opposite sides of the cell. Sister chromatids stay together — only the homologs separate.
✔ Matches description: *“Spindle fibers move homologous chromosomes to opposite sides”*
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3. Telophase II
→ This is the final stage. The nuclear membranes reform around the 4 sets of chromosomes, and the cytoplasm divides, resulting in 4 daughter cells (each haploid).
✔ Matches description: *“Nuclear membrane reforms, cytoplasm divides, 4 daughter cells formed”*
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4. Metaphase II
→ Chromosomes line up single file along the equator (middle) of each of the two cells from meiosis I. They are NOT in homologous pairs anymore — just individual chromosomes.
✔ Matches description: *“Chromosomes line up along equator, not in homologous pairs”*
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5. Prophase I (again? Wait — let’s check the list)
Actually, looking at the table, item #5 says “Prophase I” again — but that must be a mistake. Let’s look at the description: *“Crossing-over occurs”* — that’s also part of Prophase I. But since we already used Prophase I for #1, and the image shows 8 distinct phases, perhaps #5 is meant to be something else? Wait — no, in the image, phase 7 is labeled “Prophase II”, and phase 3 is “prophase I”. So maybe the table has a typo? Actually, let’s re-read the table.
Wait — the table lists:
1. Prophase I → Homologous chromosomes pair...
2. Anaphase I → Spindle fibers move homologous...
3. Telaphase II → Nuclear membrane reforms...
4. metaphase II → Chromosomes line up...
5. Prophase I → Crossing-over occurs ← This is redundant! But actually, crossing-over is a key event in Prophase I, so it’s still correct — but we can’t assign it twice. Hmm.
Actually, looking back at the image labels:
Image phase 3 = prophase I
Image phase 7 = Prophase II
But in the table, item 5 says “Prophase I” — that’s likely an error. It should probably be “Prophase II”? But the description says “Crossing-over occurs” — which does NOT happen in Prophase II. Crossing-over ONLY happens in Prophase I.
So perhaps the table has a duplicate or mislabel. But since the question is to match the given descriptions to the phases as listed, we must go by the description.
Actually, let’s ignore the numbering conflict and match descriptions to the correct biological phase.
Description: “Crossing-over occurs” → definitely Prophase I.
But we already assigned Prophase I to #1. So maybe #5 is meant to be a different phase? No — looking at the image, there’s no other phase where crossing-over occurs.
Wait — perhaps the table is not numbered correctly? Or maybe it’s testing if we notice that “Prophase I” appears twice? But that doesn’t make sense.
Alternatively, maybe item #5 is supposed to be “Prophase II” but the description is wrong? No — because crossing-over doesn’t occur in Prophase II.
Let me check standard meiosis phases:
Standard order:
- Prophase I (crossing over here)
- Metaphase I
- Anaphase I
- Telophase I
- Prophase II
- Metaphase II
- Anaphase II
- Telophase II
In the image, the phases are labeled as:
1. Anaphase I
2. Anaphase II
3. prophase I
4. Metaphase I
5. Metaphase II
6. Telaphase I
7. Prophase II
8. Telaphase II
So the table is listing phases in a different order, and some names are repeated or miswritten.
But for matching, we match the description to the correct phase name, regardless of the number.
So:
- “Crossing-over occurs” → Prophase I → so even though #1 is already Prophase I, #5 is also listed as Prophase I — so it’s consistent? But that would mean two entries for Prophase I.
Perhaps the table has a typo, and #5 should be “Prophase II” — but then the description “Crossing-over occurs” would be wrong.
Wait — let’s read the description for #5 again: “Crossing-over occurs” — that’s exclusively Prophase I.
Similarly, #7 is “Metaphase I” → description: “Homologous chromosomes line up alone equator” — yes, in Metaphase I, homologous pairs line up at the equator.
#8 is “Telaphase I” → “Cytoplasm divides, 2 daughter cells are formed” — yes, after Telophase I, you have two haploid cells.
Now, what about #6: “Anaphase II” → “Sister chromatids separate” — yes, in Anaphase II, the sister chromatids split.
And #4: “metaphase II” → “Chromosomes line up along equator, not in homologous pairs” — correct.
#3: “Telaphase II” → “Nuclear membrane reforms, cytoplasm divides, 4 daughter cells formed” — correct.
#2: “Anaphase I” → “Spindle fibers move homologous chromosomes to opposite sides” — correct.
#1: “Prophase I” → “Homologous chromosomes pair up and form tetrad. Crossing over occurs” — correct.
#5: “Prophase I” → “Crossing-over occurs” — this is also correct for Prophase I, but it’s redundant. However, since the table lists it, and the description matches, we accept it.
But wait — in the image, phase 7 is Prophase II, and phase 3 is prophase I. So in the table, when it says “Prophase I” for #5, it might be a mistake, but biologically, the description fits Prophase I.
Perhaps the table is not in order, and we’re just matching descriptions to phase names as given.
So let’s list the matches as per the table’s numbering:
1. Prophase I → Homologous chromosomes pair up and form tetrad. Crossing over occurs → ✔ Correct
2. Anaphase I → Spindle fibers move homologous chromosomes to opposite sides → ✔ Correct
3. Telaphase II → Nuclear membrane reforms, cytoplasm divides, 4 daughter cells formed → ✔ Correct
4. metaphase II → Chromosomes line up along equator, not in homologous pairs → ✔ Correct
5. Prophase I → Crossing-over occurs → ✔ Correct (though same as #1, but description is accurate for Prophase I)
6. Anaphase II → Sister chromatids separate → ✔ Correct
7. Metaphase I → Homologous chromosomes line up alone equator → ✔ Correct (should be “along the equator”, but意思 is clear)
8. Telaphase I → Cytoplasm divides, 2 daughter cells are formed → ✔ Correct
All descriptions match the phase names as listed in the table.
But wait — in standard biology, “Telaphase” is misspelled; it should be “Telophase”. But we’ll use the spelling as given.
Also, in #7, it says “line up alone equator” — probably means “along the equator”.
So the matching is correct as is.
Therefore, the final answer is that all the phase names in the table correctly match their descriptions as written.
But the task is to solve the problem — which is to match them, and since they are already matched in the table, perhaps the student needs to verify or something? But the user didn't specify what to do.
Looking back at the user's message: "Solve the problem accurately." and the image shows a worksheet with phases labeled and a table to match.
Actually, the table at the bottom seems to be the answer key or the matching exercise. And it's already filled out.
Perhaps the problem is to confirm if the matching is correct? Or maybe the student needs to fill it, but in the image, it's already done.
Given that, and since the instructions say "solve the problem", and the problem is likely to match the phases to descriptions, and the table provided does that correctly, then the answer is that the matching is accurate.
But to be precise, let's see if there's any error.
Check #5: "Prophase I" with "Crossing-over occurs" — yes, correct.
#7: "Metaphase I" with "Homologous chromosomes line up alone equator" — should be "along the equator", but it's acceptable.
#8: "Telaphase I" with "Cytoplasm divides, 2 daughter cells are formed" — yes.
All seem correct.
So the final answer is that the table correctly matches each phase with its description.
But since the response format requires a "Final Answer", and it's not a numerical answer, perhaps we state that the matching is correct.
Alternatively, maybe the problem is to identify which description goes with which phase, but since it's already done, and no specific question is asked, I think the intent is to verify.
Given the context, I'll assume the task is to confirm the matching, and it is correct.
Final Answer: The phase names in the table correctly correspond to their descriptions as listed.
We’ll go one by one:
---
1. Prophase I
→ In this phase, homologous chromosomes (one from mom, one from dad) come together and pair up to form a tetrad. During this pairing, they exchange parts — that’s called crossing over.
✔ Matches description: *“Homologous chromosomes pair up and form tetrad. Crossing over occurs”*
---
2. Anaphase I
→ Here, the spindle fibers pull the homologous chromosome pairs apart to opposite sides of the cell. Sister chromatids stay together — only the homologs separate.
✔ Matches description: *“Spindle fibers move homologous chromosomes to opposite sides”*
---
3. Telophase II
→ This is the final stage. The nuclear membranes reform around the 4 sets of chromosomes, and the cytoplasm divides, resulting in 4 daughter cells (each haploid).
✔ Matches description: *“Nuclear membrane reforms, cytoplasm divides, 4 daughter cells formed”*
---
4. Metaphase II
→ Chromosomes line up single file along the equator (middle) of each of the two cells from meiosis I. They are NOT in homologous pairs anymore — just individual chromosomes.
✔ Matches description: *“Chromosomes line up along equator, not in homologous pairs”*
---
5. Prophase I (again? Wait — let’s check the list)
Actually, looking at the table, item #5 says “Prophase I” again — but that must be a mistake. Let’s look at the description: *“Crossing-over occurs”* — that’s also part of Prophase I. But since we already used Prophase I for #1, and the image shows 8 distinct phases, perhaps #5 is meant to be something else? Wait — no, in the image, phase 7 is labeled “Prophase II”, and phase 3 is “prophase I”. So maybe the table has a typo? Actually, let’s re-read the table.
Wait — the table lists:
1. Prophase I → Homologous chromosomes pair...
2. Anaphase I → Spindle fibers move homologous...
3. Telaphase II → Nuclear membrane reforms...
4. metaphase II → Chromosomes line up...
5. Prophase I → Crossing-over occurs ← This is redundant! But actually, crossing-over is a key event in Prophase I, so it’s still correct — but we can’t assign it twice. Hmm.
Actually, looking back at the image labels:
Image phase 3 = prophase I
Image phase 7 = Prophase II
But in the table, item 5 says “Prophase I” — that’s likely an error. It should probably be “Prophase II”? But the description says “Crossing-over occurs” — which does NOT happen in Prophase II. Crossing-over ONLY happens in Prophase I.
So perhaps the table has a duplicate or mislabel. But since the question is to match the given descriptions to the phases as listed, we must go by the description.
Actually, let’s ignore the numbering conflict and match descriptions to the correct biological phase.
Description: “Crossing-over occurs” → definitely Prophase I.
But we already assigned Prophase I to #1. So maybe #5 is meant to be a different phase? No — looking at the image, there’s no other phase where crossing-over occurs.
Wait — perhaps the table is not numbered correctly? Or maybe it’s testing if we notice that “Prophase I” appears twice? But that doesn’t make sense.
Alternatively, maybe item #5 is supposed to be “Prophase II” but the description is wrong? No — because crossing-over doesn’t occur in Prophase II.
Let me check standard meiosis phases:
Standard order:
- Prophase I (crossing over here)
- Metaphase I
- Anaphase I
- Telophase I
- Prophase II
- Metaphase II
- Anaphase II
- Telophase II
In the image, the phases are labeled as:
1. Anaphase I
2. Anaphase II
3. prophase I
4. Metaphase I
5. Metaphase II
6. Telaphase I
7. Prophase II
8. Telaphase II
So the table is listing phases in a different order, and some names are repeated or miswritten.
But for matching, we match the description to the correct phase name, regardless of the number.
So:
- “Crossing-over occurs” → Prophase I → so even though #1 is already Prophase I, #5 is also listed as Prophase I — so it’s consistent? But that would mean two entries for Prophase I.
Perhaps the table has a typo, and #5 should be “Prophase II” — but then the description “Crossing-over occurs” would be wrong.
Wait — let’s read the description for #5 again: “Crossing-over occurs” — that’s exclusively Prophase I.
Similarly, #7 is “Metaphase I” → description: “Homologous chromosomes line up alone equator” — yes, in Metaphase I, homologous pairs line up at the equator.
#8 is “Telaphase I” → “Cytoplasm divides, 2 daughter cells are formed” — yes, after Telophase I, you have two haploid cells.
Now, what about #6: “Anaphase II” → “Sister chromatids separate” — yes, in Anaphase II, the sister chromatids split.
And #4: “metaphase II” → “Chromosomes line up along equator, not in homologous pairs” — correct.
#3: “Telaphase II” → “Nuclear membrane reforms, cytoplasm divides, 4 daughter cells formed” — correct.
#2: “Anaphase I” → “Spindle fibers move homologous chromosomes to opposite sides” — correct.
#1: “Prophase I” → “Homologous chromosomes pair up and form tetrad. Crossing over occurs” — correct.
#5: “Prophase I” → “Crossing-over occurs” — this is also correct for Prophase I, but it’s redundant. However, since the table lists it, and the description matches, we accept it.
But wait — in the image, phase 7 is Prophase II, and phase 3 is prophase I. So in the table, when it says “Prophase I” for #5, it might be a mistake, but biologically, the description fits Prophase I.
Perhaps the table is not in order, and we’re just matching descriptions to phase names as given.
So let’s list the matches as per the table’s numbering:
1. Prophase I → Homologous chromosomes pair up and form tetrad. Crossing over occurs → ✔ Correct
2. Anaphase I → Spindle fibers move homologous chromosomes to opposite sides → ✔ Correct
3. Telaphase II → Nuclear membrane reforms, cytoplasm divides, 4 daughter cells formed → ✔ Correct
4. metaphase II → Chromosomes line up along equator, not in homologous pairs → ✔ Correct
5. Prophase I → Crossing-over occurs → ✔ Correct (though same as #1, but description is accurate for Prophase I)
6. Anaphase II → Sister chromatids separate → ✔ Correct
7. Metaphase I → Homologous chromosomes line up alone equator → ✔ Correct (should be “along the equator”, but意思 is clear)
8. Telaphase I → Cytoplasm divides, 2 daughter cells are formed → ✔ Correct
All descriptions match the phase names as listed in the table.
But wait — in standard biology, “Telaphase” is misspelled; it should be “Telophase”. But we’ll use the spelling as given.
Also, in #7, it says “line up alone equator” — probably means “along the equator”.
So the matching is correct as is.
Therefore, the final answer is that all the phase names in the table correctly match their descriptions as written.
But the task is to solve the problem — which is to match them, and since they are already matched in the table, perhaps the student needs to verify or something? But the user didn't specify what to do.
Looking back at the user's message: "Solve the problem accurately." and the image shows a worksheet with phases labeled and a table to match.
Actually, the table at the bottom seems to be the answer key or the matching exercise. And it's already filled out.
Perhaps the problem is to confirm if the matching is correct? Or maybe the student needs to fill it, but in the image, it's already done.
Given that, and since the instructions say "solve the problem", and the problem is likely to match the phases to descriptions, and the table provided does that correctly, then the answer is that the matching is accurate.
But to be precise, let's see if there's any error.
Check #5: "Prophase I" with "Crossing-over occurs" — yes, correct.
#7: "Metaphase I" with "Homologous chromosomes line up alone equator" — should be "along the equator", but it's acceptable.
#8: "Telaphase I" with "Cytoplasm divides, 2 daughter cells are formed" — yes.
All seem correct.
So the final answer is that the table correctly matches each phase with its description.
But since the response format requires a "Final Answer", and it's not a numerical answer, perhaps we state that the matching is correct.
Alternatively, maybe the problem is to identify which description goes with which phase, but since it's already done, and no specific question is asked, I think the intent is to verify.
Given the context, I'll assume the task is to confirm the matching, and it is correct.
Final Answer: The phase names in the table correctly correspond to their descriptions as listed.
Parent Tip: Review the logic above to help your child master the concept of meiosis worksheet answer key.