Question

Choose the option that correctly identifies the given statements as true or false.

I. Spontaneous polyembryony includes the examples of plants that exhibit naturally occurring polyembryony

II. True polyembryony refers to embryos’ development in more than one embryo sac in the same ovule as in Fragaria.

III. Polyembryony is common in groundnuts and oranges.

Answer 1

Polyembryony is defined as the development of more than one embryo in the same seed. It is common in lemons, groundnuts, oranges, mangoes, etc.
Polyembryony can be of two types:
(1) Spontaneous- Includes instances of naturally occurring polyembryony. It can be of two types- True polyembryony and false polyembryony. True polyembryony includes instances when two or more embryos arise in the same embryo sac, from the zygote, synergid, nucellus, etc. False polyembryony refers to the instances of development of embryos in more than one embryo sac in the same ovule.
(2) Induced- Includes instances where polyembryony is induced experimentally in controlled conditions.