Angiosperms-Embryology (IFS (Forests Services) Botany (Mains)): Questions 1 - 3 of 3

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Question number: 1

» Angiosperms » Embryology

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Appeared in Year: 2013

Short Answer Question▾

Write in Short

Draw scientifically accurate diagrams of the following and label the parts: Typical embryo sac of dicots (Paper 1, Section B)

Question number: 2

» Angiosperms » Embryology

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Appeared in Year: 2014

Essay Question▾

Describe in Detail

Comment on Plumbago type of embryo sac development.

Explanation

Plumbago is a type of tetrasporic embryo sacs

In some plants miotic division of the megaspore mother cell is not accompanied by cytokinesis and hence all four haploid nuclei are present in single cell and called coeno-megaspore.

  • All the four nuclei of coeno-megaspore participate in the formation of embryo sac.

  • This type of embryo sacs are

… (203 more words) …

Question number: 3

» Angiosperms » Embryology

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Appeared in Year: 2014

Essay Question▾

Describe in Detail

Differentiate megasporangenesis and mega gametogenesis.

Explanation

Megasporogenesis and mega gametogenesis

  • Megasporogenesis and mega gametogenesis is a very important process in angiosperms.

  • The ovule develops as multicellular Placenta outgrowth. In further development nucleus and one or two integuments are formed.

  • Hypodermal cell of nucleus become differentiated from the other and that’s call archespo

… (278 more words) …

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