What are chromosome number in the following respectively (i) Synergid of Gossypium (ii) Leaf cells in Allium (iii) Endosperm of Saccharum

Options

A. 48, 16, 36
B. 52, 26, 32
C. 26, 16, 120
D. 48, 96, 24.

Answer

To solve the question regarding the chromosome numbers in the specified plant cells, we will analyze each part step by step.

### Step 1: Determine the chromosome number in Synergid of Gossypium
- Gossypium, commonly known as cotton, has a diploid chromosome number of 26.
- The synergid cells are part of the female gametophyte and are haploid, which means they have half the number of chromosomes compared to the diploid state.
- Therefore, the chromosome number in the synergid of Gossypium is **13** (since haploid = diploid/2).

### Step 2: Determine the chromosome number in Leaf cells of Allium
- Allium, which includes plants like onions and garlic, has a diploid chromosome number of 16.
- Leaf cells are somatic cells and are diploid, meaning they contain the full set of chromosomes.
- Thus, the chromosome number in leaf cells of Allium is **16**.

### Step 3: Determine the chromosome number in Endosperm of Saccharum
- Saccharum, commonly known as sugarcane, has a complex chromosome number due to its polyploid nature.
- The endosperm is triploid, which means it has three sets of chromosomes.
- If the diploid number is 60, then the endosperm would have **90** chromosomes (triploid = diploid × 1.5).

### Summary of Chromosome Numbers
- (i) Synergid of Gossypium: **13**
- (ii) Leaf cells in Allium: **16**
- (iii) Endosperm of Saccharum: **90**

### Final Answer
The chromosome numbers in the respective cells are:
- Synergid of Gossypium: 13
- Leaf cells in Allium: 16
- Endosperm of Saccharum: 90