This diagram shows an animal cell in meiosis I during crossing over and synapsis. A single tetrad is shown with a pair of homologous chromosomes that have been duplicated as sister chromatids. Red chromosomes indicate maternal DNA, and blue chromosomes indicate paternal DNA.  Use the passage to answer the question. Once the animal cell has completed meiosis II:   A. half of the gametes will contain recombinant chromosomes.   B. none of the gametes will contain recombinant chromosomes.   C. all of the gametes will contain maternal DNA.   D. all of the gametes will contain paternal DNA

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This diagram shows an animal cell in meiosis I during crossing over and synapsis. A single tetrad is shown with a pair of homologous chromosomes that have been duplicated as sister chromatids. Red chromosomes indicate maternal DNA, and blue chromosomes indicate paternal DNA. 

Use the passage to answer the question.

Once the animal cell has completed meiosis II:

  •  
    A.

    half of the gametes will contain recombinant chromosomes.

  •  
    B.

    none of the gametes will contain recombinant chromosomes.

  •  
    C.

    all of the gametes will contain maternal DNA.

  •  
    D.

    all of the gametes will contain paternal DNA.

Title: Meiosis and Chromatid Behavior

**Diagram Explanation:**

The image illustrates key stages and structures involved during prophase I of meiosis and their transition to metaphase I. Here's a detailed breakdown:

1. **Prophase I of Meiosis:** 
   - This is the initial stage where homologous chromosomes pair up.

2. **Pair of Homologs:**
   - Homologous chromosomes, or "homologs," align with each other.

3. **Chiasma:**
   - The diagram highlights a chiasma, which is the point where homologs exchange genetic material through crossover.

4. **Centromere:**
   - This is the constricted region of a chromosome that holds sister chromatids together.

5. **Nonsister Chromatids Held Together During Synapsis:**
   - Synapsis is the process where homologous chromosomes pair up and exchange segments. Nonsister chromatids are parts involved in crossing over.

6. **TEM Anaphase I:**
   - The Transmission Electron Micrograph (TEM) provides a detailed view of the chromosome structure during Anaphase I.

**Processes:**

1. **Synapsis and Crossing Over:**
   - During this step, homologous chromosomes come together in a process called synapsis, allowing nonsister chromatids to exchange genetic material.

2. **Movement to the Metaphase I Plate:**
   - Chromosomes align at the metaphase plate, preparing for the subsequent separation during Anaphase I.

This diagram provides a visual understanding of the physical and genetic interactions during the early stages of meiosis, crucial for genetic diversity.
Transcribed Image Text:Title: Meiosis and Chromatid Behavior **Diagram Explanation:** The image illustrates key stages and structures involved during prophase I of meiosis and their transition to metaphase I. Here's a detailed breakdown: 1. **Prophase I of Meiosis:** - This is the initial stage where homologous chromosomes pair up. 2. **Pair of Homologs:** - Homologous chromosomes, or "homologs," align with each other. 3. **Chiasma:** - The diagram highlights a chiasma, which is the point where homologs exchange genetic material through crossover. 4. **Centromere:** - This is the constricted region of a chromosome that holds sister chromatids together. 5. **Nonsister Chromatids Held Together During Synapsis:** - Synapsis is the process where homologous chromosomes pair up and exchange segments. Nonsister chromatids are parts involved in crossing over. 6. **TEM Anaphase I:** - The Transmission Electron Micrograph (TEM) provides a detailed view of the chromosome structure during Anaphase I. **Processes:** 1. **Synapsis and Crossing Over:** - During this step, homologous chromosomes come together in a process called synapsis, allowing nonsister chromatids to exchange genetic material. 2. **Movement to the Metaphase I Plate:** - Chromosomes align at the metaphase plate, preparing for the subsequent separation during Anaphase I. This diagram provides a visual understanding of the physical and genetic interactions during the early stages of meiosis, crucial for genetic diversity.
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