Question

Assertion (A): During embryo development in dicots, suspensor serves as the main nutritive tissue for the embryo
Reason (R): The last cell of the suspensor at the end adjacent to the embryo is known as haustorium

• A. Both A and R are true and R is the correct explanation of A
• B. A is true but R is false
• C. Both A and R are true and R is not the correct explanation of A
• D. Both A and R are false

Answer 1

The correct option is D Both A and R are false

During embryo development, the endosperm serves as the main nutritive tissue for the embryo. The suspensor is a group of cells which pushes the proembryo into the embryo sac. The first cell of the suspensor at the micropylar end becomes the haustorium which helps to absorb water and nutrients for the growing embryo. The last cell of the suspensor at the end adjacent to the embryo is known as hypophysis.

Hence, both assertion and reason are false.