Which of the following statements is

Options

A. The seed in grasses is not endosperimic
B. Mango is a parthenocarpic fruit
C. A proteinaceous aleurone layer is present in maize grain
D. A sterile pistil is called a staminode

Explanation

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

### Step 1: Analyze the first statement
**Statement:** "The seed in grasses is not endospermic."
- **Explanation:** This statement is incorrect. Grasses, which belong to the family Poaceae, have seeds that are endospermic. Endospermic seeds contain endosperm, which provides nourishment to the developing embryo. Therefore, this statement is false.

### Step 2: Analyze the second statement
**Statement:** "Mango is a parthenocarpic fruit."
- **Explanation:** This statement is also incorrect. Parthenocarpic fruits develop without fertilization and do not contain seeds. However, mangoes do contain seeds, which means they cannot be classified as parthenocarpic. Thus, this statement is false.

### Step 3: Analyze the third statement
**Statement:** "Proteinaceous aleurone layer is present in maize."
- **Explanation:** This statement is correct. Maize (corn) is a monocot and has an endosperm that is covered by an aleurone layer. The aleurone layer is rich in proteins and serves to provide nutrition to the growing embryo. Therefore, this statement is true.

### Step 4: Analyze the fourth statement
**Statement:** "Sterile pistil is called staminate."
- **Explanation:** This statement is incorrect. A sterile pistil is known as a staminode, not staminate. The term "staminate" refers to flowers that have stamens but no pistils. Therefore, this statement is false.

### Conclusion
The only correct statement among the options provided is the third one: "Proteinaceous aleurone layer is present in maize."