Biology
The outermost hard brownish layer of the seed coat is:
- Testa
- Tegmen
- Epicotyl
- Aleurone layer
Seeds
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Answer
Testa
Reason — Seed coat consists of outermost hard brownish layer known as testa and inner layer tegmen.
The tegmen is the inner layer of the seed coat, lying just below the testa. It is usually thinner and softer. The epicotyl is part of the embryo axis above the cotyledons. It develops into the shoot, not part of the seed coat. The aleurone layer is the outer layer of the endosperm in cereal grains like wheat and maize.
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Related Questions
The distinct whitish oval scar on the concave side of the seed is termed as :
- Scutellum
- Micropyle
- Hilum
- Germpore
The single cotyledon of a maize grain is called:
- Hypocotyl
- Scutellum
- Coleorhiza
- Embryo
The part of an embryo which develops into root is
- Coleorhiza
- Plumule
- Coleoptile
- Radicle
Which of the following statements holds true for a maize grain?
- The maize grain is a ripened ovary containing a single seed.
- The fruit wall and seed coat are fused together.
- The outermost layer of the endosperm is rich in protein.
- All of the above.