A triploid proteinaceous layer, which is the outer covering of endosperm is present in the seeds ofCastorBeanMaizePea

The outer covering of the endosperm in seeds, which is a triploid proteinaceous layer, is present in the seeds of the Castor Bean. This layer is not present in Maize or Pea seeds.

Here are the steps to answer this question:

1. Understand the question: The question is asking about the presence of a specific layer, a triploid proteinaceous layer, in the seeds of certain plants.

2. Identify the plants in question: The plants mentioned are Castor Bean, Maize, and Pea.

3. Research or recall information about the seed structure of these plants: The structure of seeds can vary greatly between different species of plants. In this case, we need to know about the presence of a triploid proteinaceous layer.

4. Answer the question: The triploid proteinaceous layer, which is the outer covering of the endosperm, is present in the seeds of the Castor Bean. This layer is not present in Maize or Pea seeds.