In which of the following mechanism of inheritance , male will be genotypically similar to of a female organism ?

Options

A. X - linked inheritance
B. Y - linked inheritance
C. Haplodiploidy mechanism
D. XX - XO mechanism

Answer

To solve the question regarding which mechanism of inheritance results in male organisms being genotypically similar to female organisms, we can analyze the provided options step by step:

### Step 1: Understand the Mechanisms of Inheritance
- **X-linked Inheritance**: In this mechanism, traits are carried on the X chromosome. Males have one X and one Y chromosome (XY), while females have two X chromosomes (XX). Therefore, males and females are not genotypically similar since males only have one X chromosome.

- **Y-linked Inheritance**: This mechanism involves traits that are carried on the Y chromosome, which is present only in males. Since females do not have a Y chromosome, they cannot inherit Y-linked traits, making males and females genotypically different.

- **Haplodiploidy**: This is a unique mechanism of sex determination found in certain insects like bees and wasps. In this system, males develop from haploid (unfertilized) eggs and females develop from diploid (fertilized) eggs. Males (haploid) and females (diploid) can share genetic similarities, especially since males are produced from the same genetic material as the females, making them genotypically similar in certain aspects.

- **XXXO Mechanism**: In this mechanism, females have two X chromosomes (XX) and males have only one X chromosome (XO). This results in females being genetically different from males, as males lack one of the X chromosomes.

### Step 2: Identify the Correct Answer
Based on the analysis:
- The **haplodiploidy mechanism** is the only one where males can be genotypically similar to females because they share genetic material from the same source (the queen bee's fertilization decision).

### Conclusion
The correct answer to the question is the **haplodiploidy mechanism**.

---