Given below are four statements (A-D) , each with one blank. Select the option which correctly fills up the blank in any of the two statements.
i. Materials to be packaged in the form of vesicles from the ER fuse with the ……face of the Golgi apparatus.
ii. Majority of the chloroplasts of the green plants are found in the ..........cells of leaves.
iii. The nucleolus is a site for active ...........synthesis .
iv. During zygotene, chromosomes start pairing together and this process of association is called ............ .

Options

A. i. Trans , ii. Mesophyll
B. i. Mesophyll, ii. Ribosomal protein
C. iii. Transfer RNA, iv. Chiasmata
D. iv . Synapsis , i. Cis

Answer

To solve the question, we need to fill in the blanks in the provided statements with the correct terms. Let's analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement i**: "Materials to be packaged in the form of vesicles from the ER fuse with the ……face of the Golgi apparatus."
- The endoplasmic reticulum (ER) transports materials to the Golgi apparatus. The side of the Golgi apparatus that receives these vesicles is known as the **cis face**. Therefore, the correct term to fill in the blank is **cis**.

2. **Statement ii**: "Majority of the chloroplasts of the green plants are found in the ..........cells of leaves."
- Chloroplasts are primarily located in the **mesophyll cells** of leaves, which are responsible for photosynthesis. Thus, the correct term to fill in the blank is **mesophyll**.

3. **Statement iii**: "The nucleolus is a site for active ...........synthesis."
- The nucleolus is primarily involved in the synthesis of **ribosomal RNA (rRNA)**, which is a component of ribosomes. Therefore, the correct term to fill in the blank is **ribosomal RNA** or simply **ribosomes**.

4. **Statement iv**: "During zygotene, chromosomes start pairing together and this process of association is called ............ ."
- The process of homologous chromosomes pairing during zygotene is referred to as **synapsis**. Thus, the correct term to fill in the blank is **synapsis**.

### Summary of Answers:
- i: **cis**
- ii: **mesophyll**
- iii: **ribosomal RNA**
- iv: **synapsis**

### Final Answer:
The correct option that fills in the blanks in any of the two statements is:
- **i: cis** and **ii: mesophyll**.