SCIENCE
PLANT KINGDOM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Halplonitc, Diplontic
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Diplontic, Haplodiplontic
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Haplodiplontic, Diplontic
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Haplodiplontic, Halplonitc
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Detailed explanation-1: -Haplodiplontic cycle is the life cycle that is intermediate between haplontic and diplontic. In this, both the haplontic and diplontic are free-living and multicellular. In diplontic life cycle, the diploid sporophyte is dominant. Ectocarpus and Fucus are algae that have both haplodiplontic and diplontic life cycles.
Detailed explanation-2: -Fucus, the brown alga has a diplontic life cycle.
Detailed explanation-3: -Complete answer: The life cycle of Ectocarpus is Haplodiplontic. Fucus (rockweed) has a diplontic life cycle.
Detailed explanation-4: -The main plant body is the sporophyte, which contains antheridia and oogonia. The antheridia and the oogonia produce sperms and ova respectively. The sperm and the ovum fuse to form the zygote, which grows to form a new sporophyte. Hence, Fucus has a diplontic life cycle.
Detailed explanation-5: -Diplontic Life Cycle – The diploid sporophyte is the dominant stage. It shows gametic meiosis. Examples for diplontic life cycle: Brown algae Fucus, Gymnosperms, Angiosperms, etc. Haplodiplontic Life Cycle – Here both haploid and diploid stages are multicellular.