In which organism female in homogametic & also have one chromosomes more than male.

Options

A. Birds
B. Drosphila
C. Chicks
D. Grasshopper

Answer

To solve the question, "In which organism is the female homogametic and also has one chromosome more than the male?", we can follow these steps:

### Step 1: Understand the terms
- **Homogametic**: An organism that produces gametes (sex cells) that are all the same type. For example, females are typically homogametic if they have two of the same sex chromosomes (XX).
- **Heterogametic**: An organism that produces two different types of gametes. For example, males are typically heterogametic if they have two different sex chromosomes (XY).
- **Chromosome count**: We need to determine which organism has females that have one more chromosome than males.

### Step 2: Analyze the options
1. **Birds (e.g., chickens)**: In birds, the female is ZW (heterogametic) and the male is ZZ (homogametic). So, this does not fit the criteria.
2. **Drosophila (fruit flies)**: In Drosophila, females are XX (homogametic) and males are XY (heterogametic). This does not fit the criteria either.
3. **Chicks (birds)**: Similar to the first option, females are ZW and males are ZZ. This does not satisfy the condition.
4. **Grasshoppers**: In grasshoppers, females are XX (homogametic) and males are XO (heterogametic). Here, the female has one more chromosome than the male (two X chromosomes vs. one X chromosome).

### Step 3: Conclusion
Based on the analysis, the organism where the female is homogametic and has one chromosome more than the male is the **grasshopper**.

### Final Answer
The correct answer is **grasshopper**.

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