Question:
Correct position of floral parts over thalamus in mustard plant is :
Correct position of floral parts over thalamus in mustard plant is :
Updated On: Aug 6, 2024
- Gynoecium occupies the highest position, while the other parts are situated below it.
- Margin of the thalamus grows upward, enclosing the ovary completely, and other parts arise below the ovary.
- Gynoecium is present in the centre and other parts cover it partially.
- Gynoecium is situated in the centre, and other parts of the flower are located at the rim of the thalamus, at the same level
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The Correct Option is A
Solution and Explanation
Answer (a) Gynoecium occupies the highest position, while the other parts are situated below it.
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Concepts Used:
Gymnosperms
Gymnosperms are flowerless plants that produce cones and seeds. It literally means "naked seed". They sit exposed on the surface of leaf-like structures called bracts. Gymnosperms are vascular plants of the subkingdom Embyophyta and include conifers, cycads, ginkgoes, and gnetophytes. They are abundant in temperate forest and boreal forest biomes with species that can tolerate moist or dry conditions.
Characteristics of Gymnosperms
- They do not produce flowers.
- Seeds are not formed inside a fruit.
- They are found in colder regions where snowfall occurs.
- They form cones with reproductive structures.
- Xylem does not have vessels and the phloem and it has no companion cells and sieve tubes.