If the number of chromosomes in a root cell is 14, then the number of chromosome in synergid will be

Options

A. 14
B. 21
C. 7
D. 28

Answer

To solve the question, "If the number of chromosomes in a root cell is 14, then the number of chromosomes in synergid will be," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Type of Cell**:
- The root cell is mentioned to have 14 chromosomes. Root cells are typically diploid (2N), meaning they contain two sets of chromosomes.

2. **Determine the Diploid Number (2N)**:
- Given that the root cell has 14 chromosomes, we can denote this as 2N = 14.

3. **Calculate the Haploid Number (N)**:
- To find the haploid number (N), which is the number of chromosomes in gametes (including synergids), we divide the diploid number by 2:
\[ N = \frac{2N}{2} = \frac{14}{2} = 7 \]

4. **Identify the Chromosome Number in Synergids**:
- Synergids are part of the female gametophyte and are haploid cells. Therefore, the number of chromosomes in a synergid is equal to the haploid number (N), which we calculated to be 7.

5. **Conclusion**:
- The number of chromosomes in the synergid is 7.

### Final Answer:
The number of chromosomes in the synergid is 7.

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