Peacock shows following genotype

Options

A. XX-XY
B. XY
C. ZZ
D. ZW

Answer

To solve the question regarding the genotype of a peacock, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Sex Determination in Birds**:
- In birds, including peacocks, the sex determination system is different from that in mammals. Birds have a ZW sex-determination system where males are typically ZZ and females are ZW.

2. **Identify the Genotype of the Peacock**:
- The question mentions the genotype of the peacock. Since peacocks are male birds, they possess the ZZ genotype.

3. **Differentiate Between Peacock and Peahen**:
- The peacock (male) has the genotype ZZ, while the peahen (female) has the genotype ZW. This distinction is crucial in understanding the genetic makeup of these birds.

4. **Evaluate the Given Options**:
- The options provided in the question include XX, XY, ZZ, and ZW.
- XX and XY are incorrect as they pertain to human sex determination (XX for females and XY for males).
- ZZ is the correct genotype for the peacock, while ZW is the correct genotype for the peahen.

5. **Conclude the Correct Answer**:
- Therefore, the correct genotype for the peacock is ZZ.

### Final Answer:
The genotype of the peacock is ZZ.

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