Male is haploid in

Options

A. Lizard
B. Cockroach
C. Honey Bee
D. Bats

Answer

### Step-by-Step Solution:

1. **Understanding Haploid and Diploid**:
- Haploid (n) refers to a cell that contains a single set of chromosomes. In contrast, diploid (2n) refers to a cell that contains two sets of chromosomes. For example, in humans, the diploid state is represented as 2n = 46 (23 pairs), while the haploid state is n = 23.

2. **Identifying the Organisms**:
- The question asks in which organism the male is haploid. The options provided are:
- a) Lizard
- b) Cockroach
- c) Honey bee
- d) Bats

3. **Analyzing Each Option**:
- **Lizard**: Lizards are typically diploid organisms (2n), with both males and females having two sets of chromosomes.
- **Cockroach**: Cockroaches are also diploid (2n), with males and females having two sets of chromosomes.
- **Honey Bee**: Honey bees have a unique reproductive system. The queen and worker bees are diploid (2n), while the male drones are haploid (n).
- **Bats**: Bats are diploid (2n), similar to lizards and cockroaches.

4. **Conclusion**:
- The only organism from the options where the male is haploid is the honey bee. In honey bees, the drones (males) develop from unfertilized eggs and thus have only one set of chromosomes (n).

5. **Final Answer**:
- Therefore, the answer to the question "Male is haploid in" is **c) Honey bee**.