mitosis meiosis worksheet - Free Printable
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Step-by-step solution for: mitosis meiosis worksheet
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Show Answer Key & Explanations
Step-by-step solution for: mitosis meiosis worksheet
1. The purpose of mitosis is to produce two genetically identical daughter cells for growth, repair, and asexual reproduction.
2. The cell divides once during mitosis.
3. Two diploid somatic (body) cells are produced at the end of mitosis.
4. Sister chromatids are two identical copies of a single chromosome, joined together at the centromere, formed during DNA replication.
5. During prophase, chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and spindle fibers begin to form from centrosomes moving to opposite poles.
6. [Drawing required on back]
7. During metaphase, chromosomes line up single file along the equator (metaphase plate) of the cell, attached to spindle fibers from both poles.
8. [Drawing required on back]
9. During anaphase, sister chromatids separate at the centromere and are pulled by spindle fibers toward opposite poles of the cell.
10. [Drawing required on back]
11. During telophase, chromosomes arrive at opposite poles and decondense back into chromatin, new nuclear envelopes form around each set of chromosomes, and the spindle apparatus disassembles.
12. [Drawing required on back]
13. Yes, cytokinesis is the physical division of the cytoplasm and occurs after mitosis, completing the cell division process.
14. During cytokinesis in animal cells, a cleavage furrow forms and pinches the cell in two; in plant cells, a cell plate forms to divide the cell.
15. [Drawing required on back]
16. The purpose of meiosis is to produce four genetically diverse haploid gametes (sperm or egg cells) for sexual reproduction, reducing the chromosome number by half.
17. The cell divides twice during meiosis (Meiosis I and Meiosis II).
18. Four haploid gametes (sex cells) are produced at the end of meiosis.
19. Prophase I involves crossing over and homologous chromosome pairing (synapsis); Prophase II involves condensed chromosomes without crossing over, starting with haploid cells.
20. [Drawing required on back]
21. Metaphase I: Homologous chromosome pairs line up at the metaphase plate; Metaphase II: Individual chromosomes line up single file at the metaphase plate (like mitotic metaphase).
22. [Drawing required on back]
23. Anaphase I: Homologous chromosomes separate and move to opposite poles; Anaphase II: Sister chromatids separate and move to opposite poles (like mitotic anaphase).
24. [Drawing required on back]
25. Telophase I: Two haploid cells form, each with duplicated chromosomes; Telophase II: Four haploid cells form, each with unduplicated chromosomes.
26. [Drawing required on back]
27. If a chemical prevented cell division, the cell would be unable to complete mitosis or meiosis, potentially leading to cell cycle arrest, abnormal cell function, or cell death.
2. The cell divides once during mitosis.
3. Two diploid somatic (body) cells are produced at the end of mitosis.
4. Sister chromatids are two identical copies of a single chromosome, joined together at the centromere, formed during DNA replication.
5. During prophase, chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and spindle fibers begin to form from centrosomes moving to opposite poles.
6. [Drawing required on back]
7. During metaphase, chromosomes line up single file along the equator (metaphase plate) of the cell, attached to spindle fibers from both poles.
8. [Drawing required on back]
9. During anaphase, sister chromatids separate at the centromere and are pulled by spindle fibers toward opposite poles of the cell.
10. [Drawing required on back]
11. During telophase, chromosomes arrive at opposite poles and decondense back into chromatin, new nuclear envelopes form around each set of chromosomes, and the spindle apparatus disassembles.
12. [Drawing required on back]
13. Yes, cytokinesis is the physical division of the cytoplasm and occurs after mitosis, completing the cell division process.
14. During cytokinesis in animal cells, a cleavage furrow forms and pinches the cell in two; in plant cells, a cell plate forms to divide the cell.
15. [Drawing required on back]
16. The purpose of meiosis is to produce four genetically diverse haploid gametes (sperm or egg cells) for sexual reproduction, reducing the chromosome number by half.
17. The cell divides twice during meiosis (Meiosis I and Meiosis II).
18. Four haploid gametes (sex cells) are produced at the end of meiosis.
19. Prophase I involves crossing over and homologous chromosome pairing (synapsis); Prophase II involves condensed chromosomes without crossing over, starting with haploid cells.
20. [Drawing required on back]
21. Metaphase I: Homologous chromosome pairs line up at the metaphase plate; Metaphase II: Individual chromosomes line up single file at the metaphase plate (like mitotic metaphase).
22. [Drawing required on back]
23. Anaphase I: Homologous chromosomes separate and move to opposite poles; Anaphase II: Sister chromatids separate and move to opposite poles (like mitotic anaphase).
24. [Drawing required on back]
25. Telophase I: Two haploid cells form, each with duplicated chromosomes; Telophase II: Four haploid cells form, each with unduplicated chromosomes.
26. [Drawing required on back]
27. If a chemical prevented cell division, the cell would be unable to complete mitosis or meiosis, potentially leading to cell cycle arrest, abnormal cell function, or cell death.
Parent Tip: Review the logic above to help your child master the concept of mitosis versus meiosis worksheet answer key.
