Chromosome number in oosphere is 8. The number in angiospermic endosperm shall be

Options

A. 8
B. 12
C. 16
D. 24

Answer

To solve the problem regarding the chromosome number in the angiospermic endosperm when the chromosome number in the oosphere is given as 8, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Chromosome Number in Oosphere**:
- The oosphere (egg cell) is stated to have a chromosome number of 8. This indicates that the oosphere is haploid (n = 8).

2. **Understand the Formation of Endosperm**:
- In angiosperms, the endosperm is formed through a process called double fertilization. During this process, one sperm cell fertilizes the egg cell, while another sperm cell fuses with two polar nuclei in the central cell.

3. **Determine the Ploidy of Endosperm**:
- The central cell contains two polar nuclei, which means it has a diploid nature (2n). When one sperm cell (n) fuses with these two polar nuclei (2n), it results in a triploid endosperm (3n).

4. **Calculate the Chromosome Number in Endosperm**:
- Since we know that n (the haploid number) is 8, we can calculate the chromosome number in the endosperm:
- Endosperm chromosome number = 3n = 3 × 8 = 24.

5. **Conclusion**:
- Therefore, the chromosome number in the angiospermic endosperm is 24.

### Final Answer:
The number of chromosomes in the angiospermic endosperm is **24**.

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