You know that the male's genotype is X –Y; visualize chromosomes: Note there a. 2 traits that are following i+ We bred for females with the genotype X" X-: visualize chromosomes: i+ m+ m+ Determine the 2 sperm that the male will produce from meiosis. Crossing over does not occur in male Drosophila. Determine the 4 egas that will result from meiosis Two will form when crossing over does not occur between the

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### Genetics and Meiosis: Drosophila Cross Experiment

**Generation:** F₁  
**Cross Phenotypes:** ♂ ivory eyes, maize body × ♀ wild eyes, wild type body = F₂

#### Genotypic Information
- **Male Genotype**: \( X^{i}/m \quad Y \)  
  Visualize chromosomes:  
  \( X^{i}/m \) and \( Y \)  
  ![Chromosome Diagram for Males](image-of-chromosomes)

- **Female Genotype**: \( X^{i+}/m^+ \quad X^{i}/m \)  
  Visualize chromosomes:  
  \( X^{i+}/m^+ \) and \( X^{i}/m \)  
  ![Chromosome Diagram for Females](image-of-chromosomes)

> **Note**: There are *two traits* that we are following.

#### Meiosis Details
Determine the two sperm that the male will produce from meiosis. Crossing over does not occur in male Drosophila. Determine the four eggs that will result from meiosis. Two will form when crossing over *does not* occur between the wing and body color alleles, and two others when crossing over *does* occur somewhere between the two.

**1. Crossing Over in Males:**
Since crossing over *does not* occur in males, all sperm will carry \( X^{i}/m \) or \( Y \).

**2. Eggs Without Crossing Over:**
The eggs that will be produced if crossing over *does not* occur will carry \( X^{i+}/m^+ \) or \( X^{i}/m \).

**3. Eggs With Crossing Over:**
The eggs which will be produced if crossing over *does* occur will carry \( X^{i+}/m \) or \( X^{i}/m^+ \).
Transcribed Image Text:### Genetics and Meiosis: Drosophila Cross Experiment **Generation:** F₁ **Cross Phenotypes:** ♂ ivory eyes, maize body × ♀ wild eyes, wild type body = F₂ #### Genotypic Information - **Male Genotype**: \( X^{i}/m \quad Y \) Visualize chromosomes: \( X^{i}/m \) and \( Y \) ![Chromosome Diagram for Males](image-of-chromosomes) - **Female Genotype**: \( X^{i+}/m^+ \quad X^{i}/m \) Visualize chromosomes: \( X^{i+}/m^+ \) and \( X^{i}/m \) ![Chromosome Diagram for Females](image-of-chromosomes) > **Note**: There are *two traits* that we are following. #### Meiosis Details Determine the two sperm that the male will produce from meiosis. Crossing over does not occur in male Drosophila. Determine the four eggs that will result from meiosis. Two will form when crossing over *does not* occur between the wing and body color alleles, and two others when crossing over *does* occur somewhere between the two. **1. Crossing Over in Males:** Since crossing over *does not* occur in males, all sperm will carry \( X^{i}/m \) or \( Y \). **2. Eggs Without Crossing Over:** The eggs that will be produced if crossing over *does not* occur will carry \( X^{i+}/m^+ \) or \( X^{i}/m \). **3. Eggs With Crossing Over:** The eggs which will be produced if crossing over *does* occur will carry \( X^{i+}/m \) or \( X^{i}/m^+ \).
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