Q. In gymnosperms the dominate phase is …A… . They are heterosporous, produce …B… and …C… . Here, A, B and C refers to
A) A-sporophyte, B-haploid microspores, C-haploid megaspores
B) A-gametophyte, B-haploid microspores, C-diploid megaspores
C) A-sporophyte, B-diploid microspores, C-diploid megaspores
D) A-gametophyte, B-diploid microspores, C-haploid megaspores
Explanation
A-Sporophyte B-Haploid microspore C-Haploid megaspore In gymnosperms the dominant phase is sporophyte. They are neterosporous and produce haploid megaspore and microspores. Which are produced with in sporangia born on sporophyll. These sporangia are arranged spirally along an axis to form compact cones
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.