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Question:
The seed coat in both gymnosperms and angiosperms is derived from the
The seed coat in both gymnosperms and angiosperms is derived from the
Updated On: May 17, 2023
- megaspore
- microspore
- megasporangium
- microsporangium.
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The Correct Option is C
Solution and Explanation
In angiosperms and gymnosperms, the seed coat is derived from megasporangium or ovule. Seed coat develops from the integuments of the ovule. The outer coat is called testa and the inner layer is called tegmen. Two outer layers of integument i.e., outer fleshy layer and middle stony layer form the seed coat.
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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.
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