Question

Match the column I with column II and choose the option which shows its correct combination.
$\begin{array}{cccc}& \text{Column-I}& & \text{Column-II}\\ & \text{(Pattern of life cycle in plant)}& & \text{(Examples)}\\ \text{A.}& \text{Haplontic life cycle}& \text{I.}& \text{Bryophytes, Pteridophytes, Ectocarpus, Polysiphonia, Kelp}\\ \text{B.}& \text{Diplontic life cycle}& \text{II.}& \text{Seed bearing plants (Gymnosperm and Angiosperm), Fucus}\\ \text{C.}& \text{Haplo-diplontic life cycle}& \text{III.}& \text{Many algae (Volvox, Spirogyra) and some species of Chlamydomonas}\end{array}$

• A. A – III; B – II; C – I
• B. A – I; B – II; C – III
• C. A – II; B – I; C – III
• D. A – III; B – I; C – II

Answer 1

The correct option is A A – III; B – II; C – I

Haplontic life cycle, where the haploid gametophyte stage is predominant is observed in many algae.
Diplontic life cycle, whwre the diploid sporophytic generation is dominant is observed in gymnosperms and angiosperms. Fucus is an exception as it is an algae that exhibits diplontic life cycle.
Haplo-diplontic life cycle where either hapoid or diploid generation is slightly predominant is observed in Bryophytes and pteridophytes. Some large algae like Ectocarpus, Polysiphonia and Kelp also exhibit haplo-diplontic life cycle.