ame: Period Date: Review questions for exam 2 Define homologous chromosome 1. De

Question

ame: Period Date: Review questions for exam 2 Define homologous chromosome 1. Define sister chromatids 2. Describe 2 parts of meiosis that are similar to mitosis l. b. 3. Identify whether each process below occurs during mitosis, meiosis, or both. a. Sister chromatids separate b. Haploid cells are formed c. Cell division occurs once d. Homologous chromosomes pair e 4 haploid cells are the final result f. Crossing over occurs e Cell division occurs twice h. Replicated chromosomes line up in the middle of the cell i. 2 diploid cells are the final result 4. Define crossing over. What phase does it occur? Does the parent cell in Mitosis start off as diploid or haploid? the end of Mitosis diploid or haploid 5. Are the resulting cells at 6. Does the parent cell in Meiosis start off as diploid or haploid? 7. How does the number of chromosomes in a sex cell compare with the number of chromosomes in t 8. Describe the differences in how the chromosomes line up in middle of the cell during Mctaphase I of Mciosis and Are the resulting cells at the end of Meiosis diploid or haploid: Metaphase of Mitosis

Explanation / Answer

HOMOLOGOUS CHROMOSOMES: A couple of homologous chromosomes, or homologs, are a set of one maternal and one paternal chromosome that pair up with each other inside a cell during meiosis. Homologs have the same genes in the same loci where they provide points along each chromosome which enable a pair of chromosomes to align correctly with each other before separating during meiosis. Homologous chromosomes are not exact copies of each other. They are distinct chromosomes passed down through the gametes of each parent.

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