Select the correct option for the following statements:
$(i)$ Like bryophytes and pteridophytes,in gymnosperms,the male and female gametophytes do/do not have an independent free-living existence.
$(ii)$ Non-motile isogamous gametes are found in Spirogyra/Volvox.
$(i)$ Like bryophytes and pteridophytes,in gymnosperms,the male and female gametophytes do/do not have an independent free-living existence.
$(ii)$ Non-motile isogamous gametes are found in Spirogyra/Volvox.
(A) $(i)$ In gymnosperms,the male and female gametophytes do not have an independent free-living existence. They remain within the sporangia retained on the sporophytes.
$(ii)$ Spirogyra exhibits non-motile isogamous gametes,whereas Volvox exhibits oogamous reproduction with motile male gametes.
$(ii)$ Spirogyra exhibits non-motile isogamous gametes,whereas Volvox exhibits oogamous reproduction with motile male gametes.
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| List-$I$ | List-$II$ |
| $(a)$ Spirogyra | $(i)$ Dominant diploid sporophyte vascular plant,with highly reduced male or female gametophyte |
| $(b)$ Fern | $(ii)$ Dominant haploid free-living gametophyte |
| $(c)$ Funaria | $(iii)$ Dominant diploid sporophyte alternating with reduced gametophyte called prothallus |
| $(d)$ Cycas | $(iv)$ Dominant haploid leafy gametophyte alternating with partially dependent sporophyte |
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MediumNEET 2022
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