Which of the following statements is correct ?

Options

A. The seed in grasses is not endospermic .
B. Mango is a pathenocarpic fruit .
C. A proteinaceous aleurone layer is present in maize grain.
D. A sterile pistil is called a stamionde .

Answer

To determine which of the statements is correct, let's analyze each option step by step:

1. **First Statement: "The seeds in grass are not endospermic."**
- **Analysis:** This statement is incorrect. Grass seeds are indeed endospermic, meaning they contain endosperm, which is the nutritive tissue that provides food for the developing embryo. Therefore, this statement is false.

2. **Second Statement: "Mango is a parthenocarpic fruit."**
- **Analysis:** This statement is also incorrect. While mangoes can develop without fertilization, they are classified as drupe fruits (stone fruits) due to their structure, which includes a stony endosperm. Thus, this statement is false.

3. **Third Statement: "Proteinaceous allulon layer is present in maize grain."**
- **Analysis:** This statement is correct. Maize (corn) is a monocot and does contain a proteinaceous layer known as the allurone layer. This layer is important for the seed's nutrition and is indeed present in maize grains. Therefore, this statement is true.

4. **Fourth Statement: "A sterile pistil is called staminode."**
- **Analysis:** This statement is incorrect. A staminode refers to a sterile stamen, not a sterile pistil. A sterile pistil does not have a specific term like staminode. Therefore, this statement is false.

**Conclusion:** The only correct statement is the third one: "Proteinaceous allulon layer is present in maize grain."