Question

The ovules in gymnosperms are: (A) Ategmic (B) Unitegmic (C) Bitegmic (D) Unitegmic or bitegmic​

Answer 1

Unitegmic: Ovules which have only one integument in it. Gymnosperms have a unitegmic ovule. - Bitegmic: Ovules which have only two integuments in it. Angiosperms have a bitegmic ovule.

Answer 2

Option B is the correct answer.

• Unitegmic is an extensively progressive situation. It is generally seen that the small the number of integuments existing in the ovule, the additional progress the integuments in their properties and purpose.
• An integument is a defensive coating that encircles the ovule of the plant. There are four categories of integuments established on the number of coatings existing in them.
• Unitegmic: Ovules possess only one integument in them. Gymnosperms possess a unitegmic ovule.
• Bitegmic: Ovules possess only two integuments in them. Angiosperms possess a bitegmic ovule.
• Tritegmic - Ovules which include only three integuments in it. Litchi possesses this type of ovule.
• of ovule.Ategmic - Ovules which include no integument in them. Some parasites like Viscum possess ategmic ovule.

Hence, option B is the correct answer.

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