If you are asked to select a group of two vegetables, out of the following, having homologous structures which one would you select?
If you are asked to select a group of two vegetables, out of the following, having homologous structures which one would you select?
Options
The correct option is (a). Carrot and radish form a group of vegetables having homologous structures.
Marking Scheme
- 11 Mark for selecting the correct option (a) Carrot and radish.
Hint
Look for two vegetables that are both modifications of the same plant organ (e.g., both roots or both stems).
Quick Oral Answer
Homologous structures have the same basic structural design and origin but may perform different functions. Carrot and radish are homologous because both are modified roots.
Analysis & Explanation
Homologous structures are those that share a common anatomical origin and basic structure, even if they perform similar or different functions.
- Why option (a) is correct: Both carrot and radish are modified taproots designed for food storage. Since they share the same evolutionary and structural origin (roots), they are homologous.
- Why other options are incorrect:
- Potato and sweet potato (b): Potato is a modified stem (tuber) while sweet potato is a modified root. They perform the same function (food storage) but have different structural origins, making them analogous structures.
- Potato and tomato (c): Potato is a modified stem (tuber) and tomato is a fruit. They do not share homologous structural modifications for a common purpose in this context.
- Lady finger and potato (d): Lady finger is a fruit/pod and potato is a modified stem tuber; they are not homologous structures.
Common Mistakes
- 1Choosing potato and sweet potato, which are analogous structures because potato is a stem and sweet potato is a root.
Interesting Facts
Even though sweet potato and potato look similar and serve the same function, they belong to completely different plant families and evolved food storage independently—one from roots and the other from stems!
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2016?
This question carries 1 mark in the CBSE Class 10 Science 2016 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Heredity" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Homologous and Analogous Organs" from CBSE Class 10 Science.
Has this question appeared in other CBSE Science papers?
Yes, a similar question appeared in the 2016 CBSE Class 10 Science paper.
What type of question is this in the CBSE Class 10 Science 2016 paper?
This is a MCQ question from Section B in the CBSE Class 10 Science 2016 paper.