Describe the structure of a dicot seed.

Important Questions on Asexual and Sexual Reproduction in Plants

EASY

12th Tamil Nadu Board

IMPORTANT

Botany Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Asexual and Sexual Reproduction in Plants>Exercise>Q 21

Define ruminate endosperm.

MEDIUM

12th Tamil Nadu Board

IMPORTANT

Botany Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Asexual and Sexual Reproduction in Plants>Exercise>Q 22

Banana is a parthenocarpic fruit whereas oranges show polyembryony. How are they different from each other with respect to seed.

HARD

12th Tamil Nadu Board

IMPORTANT

Botany Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Asexual and Sexual Reproduction in Plants>Exercise>Q 23

What is apomixis? How is the phenomenon useful to the farmer?

MEDIUM

12th Tamil Nadu Board

IMPORTANT

Botany Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Asexual and Sexual Reproduction in Plants>Exercise>Q 24

Banana produces fruits but is propagated only by vegetative means. Why is it so?

HARD

12th Tamil Nadu Board

IMPORTANT

Botany Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Asexual and Sexual Reproduction in Plants>Exercise>Q 25

Why are some seeds referred to as apomictic seeds? Mention one advantage and one disadvantage to a farmer who uses them.

EASY

12th Tamil Nadu Board

IMPORTANT

Botany Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Asexual and Sexual Reproduction in Plants>Exercise>Q 26

Syngamy means:

EASY

12th Tamil Nadu Board

IMPORTANT

Botany Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Asexual and Sexual Reproduction in Plants>Exercise>Q 27

The role of double fertilization in angiosperms is to produce

EASY

12th Tamil Nadu Board

IMPORTANT

Botany Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Asexual and Sexual Reproduction in Plants>Exercise>Q 28

Double fertilization is unique to