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Natural system.of classification of flow...

Natural system.of classification of flowering plants is based on similarities and differences in
I. Flower morphology
II. Sequence of nucleotides in mitochondrial DNA
III. Nature and arrangement of vascular strands
IV. Fruit and seed morphology

A

I, III and IV

B

I and IV only

C

only II

D

only I

Text Solution

AI Generated Solution

The correct Answer is:
To determine the basis of the natural system of classification of flowering plants, we need to analyze the given options: 1. **Flower Morphology**: This refers to the structure and form of flowers, which is a significant characteristic used in the classification of flowering plants. Different families and species can be distinguished based on flower structure. 2. **Sequence of Nucleotides in Mitochondrial DNA**: While molecular data can provide insights into relationships between species, traditional natural classification does not primarily rely on DNA sequencing. Therefore, this aspect is not a basis for the natural system of classification. 3. **Nature and Arrangement of Vascular Strands**: The arrangement and type of vascular tissues (xylem and phloem) are important in classifying plants, as they reflect evolutionary relationships and adaptations. 4. **Fruit and Seed Morphology**: The characteristics of fruits and seeds are crucial for classification, as they can indicate relationships between different plant groups. Now, let's summarize the findings: - **Included in Natural Classification**: - Flower Morphology (I) - Nature and Arrangement of Vascular Strands (III) - Fruit and Seed Morphology (IV) - **Not Included in Natural Classification**: - Sequence of Nucleotides in Mitochondrial DNA (II) Thus, the natural system of classification of flowering plants is based on similarities and differences in **I, III, and IV**. ### Final Answer: The natural system of classification of flowering plants is based on similarities and differences in: - I. Flower morphology - III. Nature and arrangement of vascular strands - IV. Fruit and seed morphology
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