Which one of the following statements is correct?
- The seed in grasses is not endospermic.
- Mango is a parthenocarpic fruit.
- A proteinaceous aleurone layer is present in maize grain.
- A sterile pistil is called a staminode.
Answer
(3) A proteinaceous aleurone layer is present in maize grain.
Solution
As per NCERT, in maize grain the endosperm is bulky and is separated from the embryo layer by a proteinaceous layer called aleurone layer.
∵ Seeds of grasses (cereals) are endospermic.
∵ Mango is a true fruit developed from a fertilised ovary (drupe), not parthenocarpic.
∵ A sterile stamen (not pistil) is called a staminode.
∴ Only the statement about the aleurone layer in maize is correct.
Answer: (3)