Question

Polyembryony in Citrus is due to

• A. Division of nucellar cells and its penetration into embryo
• B. Development of perisperm
• C. Fertilization of antipodal cells inside embryo sac
• D. Division of synergid cells inside embryo sac

Hint:

In Citrus and Mango, \[ \boxed{\text{Polyembryony occurs due to adventive embryos developing from nucellus.}} \]

Answer 1

The Correct Option is A

Step 1: Recall polyembryony in Citrus. In Citrus, besides the normal zygotic embryo, additional embryos arise from the \[ \boxed{\text{nucellar cells surrounding the embryo sac}.} \] This is known as adventive embryony.

Step 2: Identify the correct reason. The nucellar cells divide and penetrate into the embryo sac, producing extra embryos. Hence, \[ \boxed{\text{Polyembryony is due to division of nucellar cells.}} \]

Step 3: Choose the correct option. Therefore, the correct option is \[ \boxed{(A).} \]