Question

In which of the following plants, the nucellar
cells start dividing and develop into the
embryos ?
(1) Citrus and mango
(2) Parthenium and grasses
(3) Pea and gram
(4) Wheat and rice​

Answer 1

Answer:

Citrus and mango..

Explanation:

Not perfect sure

Answer 2

Answer:

Certain seeds (mainly those of citrus trees) exhibit apomixis, in which embryos genetically identical to the parent plant grow from the nucellar tissue. As a result, A is the right response.                  

Explanation:

The tissue that makes up the majority of the ovule of seed plants is known as nucellar tissue. It stores the embryo sac as well as the nutritive tissue.

One of the most unique aspects of citrus seed reproduction is nucellar embryony. The word relates to the concept of embryos from the nucellus, which surrounds the embryo sac in the maternal tissue.

Process of Nucellar Embryon

• It all starts with the creation of megaspores.
• Initial nucellar embryonic cells from the nucellus tissue. These first cells develop, divide, and grow.
• The nucellar embryos mature. If a zygote is present, the nucellar embryos take precedence.
• The existence of additional embryos produced from nucellar tissue results in the formation of polyembryonic seeds.
• Polyembryonic seeds grow and produce