Life cycle of plants has two distinct phases-the diploid (A)_____ and the (B)____ gametophyte.

Answer

To answer the question regarding the life cycle of plants, we need to identify the two distinct phases mentioned: the diploid phase (A) and the gametophyte phase (B).

### Step-by-Step Solution:

1. **Understanding Plant Life Cycle**: The life cycle of plants consists of two main phases: the sporophytic phase and the gametophytic phase.

2. **Identifying the Diploid Phase (A)**:
- The sporophytic phase is the diploid phase of the plant life cycle.
- In this phase, the plant body is diploid, meaning it has two sets of chromosomes (2n).
- This phase is responsible for producing spores through meiosis.

3. **Identifying the Haploid Phase (B)**:
- The gametophytic phase is the haploid phase of the plant life cycle.
- In this phase, the plant produces gametes (sperm and eggs) and is haploid, meaning it has one set of chromosomes (n).
- This phase arises from the spores produced in the sporophytic phase.

4. **Final Answer**:
- Therefore, the answer to the question is:
- (A) Sporophyte
- (B) Gametophyte

### Summary:
- The life cycle of plants has two distinct phases: the diploid sporophyte (A) and the haploid gametophyte (B).