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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


Question ID - 1528 | Toppr Answer

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

1 Answer - 5876 Votes

3537

Answer Key : (a) -

(a)

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



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