Which of the following is not an objective of Biofortification in crops ?
Improve micronutrient and mineral content
Improve protein content
Improve resistance to diseases
Improve vitamin content
The Correct Option is C
Solution and Explanation
To address the question about the objective of biofortification in crops, let's delve into what biofortification entails and clarify its intended goals.
Biofortification is the process of increasing the nutritional value of staple crops by enhancing their content of essential vitamins and minerals. It is primarily used to combat malnutrition by enriching crops with micronutrients like iron, zinc, and vitamins.
Let's analyze each option:
- Improve micronutrient and mineral content: This is one of the primary goals of biofortification. Crops are biofortified to increase essential micronutrients like iron and zinc to address dietary deficiencies.
- Improve protein content: Although biofortification mainly focuses on micronutrients, it can also aim to improve protein content as part of enhancing the nutritional profile of certain crops.
- Improve resistance to diseases: This is not an objective of biofortification. Improving disease resistance is typically a goal of traditional plant breeding or genetic modification aimed at increasing crop yield and resilience, rather than nutritional enhancement.
- Improve vitamin content: This is a clear objective of biofortification. Enhancing the vitamin content, such as Vitamin A, is a common goal to combat deficiencies through biofortified crops.
From the analysis, it's evident that improving resistance to diseases is not an objective of biofortification, making this the correct answer.
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Concepts Used:
Anatomy of Dicotyledonous and Monocotyledonous Plants
Dicot Root:
- Dicot plants have the taproot system.
- The outermost layer is called the epidermis. The epidermal cells sometimes project out which appear as the root hairs.
- The epidermis is followed by the multi-layered cortex, loosely made of the parenchyma cells with intercellular spaces.
- The inner layer of the cortex is called endodermis, which is tightly packed by the barrel shaped-cells.
- Endodermis is followed by pericycle, which are a few layers of thick-walled parenchyma cells.
- In dicots, the central pith is not distinct.
- There are two to four xylem and phloem.
- The xylem and phloem are remarked by a layer of parenchymatous cells known as conjunctive tissue.
Monocot Root:
Monocot roots do not show much difference in the anatomy from that of the dicot roots.
- Monocot plants possess an adventitious root system.
- As in the dicots, the epidermis forms the outermost layer, followed by cortex, pericycle, endodermis, vascular bundles (xylem and phloem) and pith (random order).
- Pith is conspicuous and large.
- The number of xylem in a monocot is six or more.
- Secondary growth is not seen in the monocot plants.