One chromosome comes from your mom and one comes from your dad. In mitosis (where crossing over does not happen), these are identical to each other. In mitosis, these are what line up along the metaphase plate. These are held together by a centromere. These are not exactly identical to each other, but they do have the same genes. Specifically, they have different versions of each gene (or "alleles"). These are created during the S phase of interphase where DNA is replicated. : Homologous chromosomes : Sister chromatids III

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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### Understanding Homologous Chromosomes and Sister Chromatids

#### Match each statement with the correct term.

1. **Statement:** One chromosome comes from your mom and one comes from your dad.
   - **Answer:** Homologous chromosomes

2. **Statement:** In mitosis (where crossing over does not happen), these are identical to each other.
   - **Answer:** Sister chromatids

3. **Statement:** In mitosis, these are what line up along the metaphase plate.
   - **Answer:** Sister chromatids

4. **Statement:** These are held together by a centromere.
   - **Answer:** Sister chromatids

5. **Statement:** These are not exactly identical to each other, but they do have the same genes. Specifically, they have different versions of each gene (or "alleles").
   - **Answer:** Homologous chromosomes

6. **Statement:** These are created during the S phase of interphase where DNA is replicated.
   - **Answer:** Sister chromatids

#### Explanation

This exercise helps differentiate between homologous chromosomes and sister chromatids. Homologous chromosomes come from each parent and may contain different alleles for each gene, whereas sister chromatids are exact copies of each chromosome, joined by a centromere, and are identical barring any mutations. Sister chromatids are formed during DNA replication in the S phase of the cell cycle and align on the metaphase plate during mitosis.
Transcribed Image Text:### Understanding Homologous Chromosomes and Sister Chromatids #### Match each statement with the correct term. 1. **Statement:** One chromosome comes from your mom and one comes from your dad. - **Answer:** Homologous chromosomes 2. **Statement:** In mitosis (where crossing over does not happen), these are identical to each other. - **Answer:** Sister chromatids 3. **Statement:** In mitosis, these are what line up along the metaphase plate. - **Answer:** Sister chromatids 4. **Statement:** These are held together by a centromere. - **Answer:** Sister chromatids 5. **Statement:** These are not exactly identical to each other, but they do have the same genes. Specifically, they have different versions of each gene (or "alleles"). - **Answer:** Homologous chromosomes 6. **Statement:** These are created during the S phase of interphase where DNA is replicated. - **Answer:** Sister chromatids #### Explanation This exercise helps differentiate between homologous chromosomes and sister chromatids. Homologous chromosomes come from each parent and may contain different alleles for each gene, whereas sister chromatids are exact copies of each chromosome, joined by a centromere, and are identical barring any mutations. Sister chromatids are formed during DNA replication in the S phase of the cell cycle and align on the metaphase plate during mitosis.
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