0 Homework Seved Help Save & Exit Submit Classify the following characteristics

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Question

0 Homework Seved Help Save & Exit Submit Classify the following characteristics depending on if they describe events occurring in mitosis, meiosis 1, or meiosis II. Mitosis Meiosi Homologous align at the during metaphase Homologous pair up during spindle equator prophase A diploid number of chromosomes align at the spindle equator during metaphase Book Results in 2 diverse haploid nuclei ferences Results in 4 genetically Results in 2 genetically diverse haploid identical diploid nuclei nuclei A haploid number of chromosomes Crossing-over align at the spindle equator during metaphase occurs during synapsis

Explanation / Answer

1. Homologous chromosomes pair up during prophase: During meiosis I-prophase I- homologous chromosomes pair up to form tetrad.

2. Homologous chromosomes align at the spindle equator during metaphase: During meiosis I-metaphase I- spindle fibers attach at the centromeres of the homologous chromosomes. Homologous chromosomes pair and align at cell centre.

3. Results in two genetically diverse haploid nuclei: In meiosis I, after cytokinesis, 2 genetically haploid cells are produced, which enter meiosis II.

4. A diploid number of chromosomes align at the spindle equator during metaphase: diploid number of chromosomes are present during mitosis.

5. Results in 4 genetically diverse haploid nuclei: In meiosis II, after cytokinesis, 4 genetically haploid cells are produced

6. Results in 2 genetically identical diploid nuclei: In mitosis, the cell divides into two identical cells with identical nuclei.

7. A haploid number of chromosomes align at the spindle equator during metaphase: The chromosomes become haploid during meiosis I. Thus, during metaphase II, of meiosis II, haploid chromosomes align at the cell equator.

8. Crossing over occurs during synapsis: Synapsis is alignment of homologous chromosomes, forming tetrad. Crossing over involves, exchange of genetic material between non-sister chromatids. It occurs during prophase of meiosis I.

Mitosis

Meiosis I

Meiosis II

A diploid number of chromosomes align at the spindle equator during metaphase

Homologous chromosomes pair up during prophase

Results in 4 genetically diverse haploid nuclei

Results in 2 genetically identical diploid nuclei

Homologous chromosomes align at the spindle equator during metaphase

Results in 4 genetically diverse haploid nuclei.

Results in two genetically diverse haploid nuclei

A haploid number of chromosomes align at the spindle equator during metaphase

Crossing over occurs during synapsis