In a type of apomixis known as adventive embryony, embryos develop directly from the:

1. Synergids or antipodals in an embryo sac

2. Nucellus or integuments

3. Zygote

4. Accessory embryo sacs in the ovule

Subtopic:  Apomixis & Polyembryony |
 71%
AIPMT - 2005
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