Assertion (A): The zygote gives rise to heart-shaped embryo and subsequently proembryo in most angiosperms. Reason (R): The zygote is present at the micropylar end of the embryo sac and develops into an embryo.
Show Hint
Embryogenesis in angiosperms involves distinct stages, including the globular, heart-shaped, and torpedo stages, leading to the formation of a mature embryo.
Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
: Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.
Hide Solution
Verified By Collegedunia
The Correct Option isC
Solution and Explanation
- The zygote does give rise to a heart-shaped embryo, which subsequently develops into the proembryo in angiosperms.
- The micropylar end of the embryo sac is where the zygote is located, facilitating nutrient absorption necessary for its development.
- However, the micropylar location (R) is not the reason for the formation of the heart-shaped embryo stage (A). Instead, the heart-shaped stage results from differentiation during embryogenesis.
