Description : Read the following five statements (A to E) and select the option with all correct statements. A. Mosses and lichens are the first organisms to colonise a bare rock. B. Selaginella is a homosporous pteridophyte. C. Coralloid roots in Cycas ... D and E (b) B, C and E (c) A, C and D (d) B, C and D
Last Answer : (a) A, D and E
Description : Bryophytes comprise (a) dominant phase of gametophyte which produces spores (b) small sporophyte phase and generally parasitic on gametophyte (c) sporophyte is of longer duration (d) dominant phase of sporophyte which is parasitic.
Last Answer : b) small sporophyte phase and generally parasitic on gametophyte
Description : Pteridophytes differ from mosses/bryophytes in possessing (a) independent gametophyte (b) well developed vascular system (c) archegonia (d) flagellate spermatozoids.
Last Answer : (b) well developed vascular system
Description : What is sporophyte of pteridophytes?
Last Answer : Sporophyte is the adult plant body in pteridophytes.
Description : Difference between sporophyte and gametophyte -Biology
Last Answer : answer:
Description : Why is the sporophyte dependent on the gametophyte? -Biology
Description : When is gametophyte dependent on sporophyte? -Biology
Description : When does the sporophyte and gametophyte generation begin? -Biology
Description : Strobilus gametophyte or sporophyte -Biology
Description : Is protonema gametophyte or sporophyte? -Biology
Description : are bryophyte spores part of the sporophyte or gametophyte generation? how about fern spores? -Biology
Description : Are the leafy plants part of the sporophyte or the gametophyte generation?
Last Answer : Feel Free to Answer
Description : Why sexual and asexual ulva plant are called as sporophyte gametophyte?
Last Answer : What is the answer ?
Description : In a moss the gametophyte stage depends on the sporophyte stage for nutrients.?
Description : Development of Sporophyte from gametophyte tissue without fusion of gametes is: (a) Apospory (b) Apogamy (c) Apomixis (d) Parthenogenesis
Last Answer : Ans. ((b))
Description : A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte
Last Answer : Ans. ((c))
Description : Mention the differences between gametophyte and sporophyte.
Last Answer : Gametophyte 1. It is gamete producing structure 2. It is haploid 3. It is capable of photosynthesis & can lead independent life Sporophyte 1. It is spore producing structure 2. It is diploid 3. It depends on gametophyte
Description : .Prothallus (gametophyte) gives rise to fern plant (sporophyte) without fertilization. It is (a) apospory (b) apogamy (c) parthenocarpy (d) parthenogenesis.
Last Answer : (b) apogamy
Description : Formation of gametophyte directly from sporophyte without meiosis is (a) apospory (b) apogamy (c) parthenogenesis (d) amphimixis.
Last Answer : (a) apospory
Description : Read the following five statements (A - E) and answer as asked next to them. (A) In Equisetum, the female gametophyte is retained on the parent sporophyte. (B) In Ginkgo, male gametophyte is not independent. (C ... . How many of the above statements are correct? (a) Two (b) Three (c) Four (d) One
Last Answer : (d) One
Description : What is common in all the three, Funaria, Dryopteris and Ginkgo? (a) Presence of archegonia (b) Well developed vascular tissues (c) Independent gametophyte (d) Independent sporophyte
Last Answer : (a) Presence of archegonia
Description : Which one of the following is considered important in the development of seed habit? (a) Heterospory (b) Haplontic life cycle (c) Free-living gametophyte (d) Dependent sporophyte
Last Answer : (a) Heterospory
Description : Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because (a) female gametophyte is free and gets dispersed like seeds (b) female gametophyte ... by seed coat (d) embryo develops in female gametophyte which is retained on parent sporophyte.
Last Answer : (b) female gametophyte lacks archegonia
Description : The plant body of moss (Funaria) is (a) completely sporophyte (b) predominantly gametophyte with sporophyte (c) completely gametophyte (d) predominantly sporophyte with gametophyte.
Last Answer : (b) predominantly gametophyte with sporophyte
Description : In a moss, the sporophyte (a) manufactures food for itself, as well as for the gametophyte (b) is partially parasitic on the gametophyte (c) produces gametes that give rise to the gametophyte (d) arises from a spore produced from the gametophyte.
Last Answer : (b) is partially parasitic on the gametophyte
Description : Which one of the following is a correct statement? (a) Pteridophyte gametophyte has a protonemal and leafy stage. (b) In gymnosperms, female gametophyte is free- living. (c) Antheridiophores and ... are present in pteridophytes. (d) Origin of seed habit can be traced in pteridophytes.
Last Answer : (d) Origin of seed habit can be traced in pteridophytes.
Description : 85. Which one of the following is a correct statement ? (1) Origin of seed habit can be traced in pteridophytes (2) Pteridophyte gametophyte has a protonemal and leafy stage (3) In gymnosperms female gametophyte is free-living (4) Antheridiophores and archegoniophores are present in pteridophytes
Last Answer : Origin of seed habit can be traced in pteridophytes
Description : Similarities between bryophytes and pteridophytes? -Biology
Description : In bryophytes and pteridophytes, transport of male gametes requires
Last Answer : In bryophytes and pteridophytes, transport of male gametes requires (A) Birds (B) Water (C) Wind (D) Insects
Description : Double fertilization is found in: (a) Bryophytes (b) Angiosperms (c) Gymnosperms (d) Pteridophytes
Description : Which of the following are mostly woody trees, always perennials and never herbs or annuals? (a) Angiosperms (b) Gymnosperms (c) Pteridophytes (d) Bryophytes
Last Answer : Ans:(b)
Description : Our major foods, fibres, spices, fruits and beverage crops are (a) Flowering plants (b) Gymnospermous plants (c) Pteridophytes (d) Bryophytes
Last Answer : Ans:(a)
Description : Pollination occurs in (a) bryophytes and angiosperms (b) pteridophytes and angiosperms (c) angiosperms and gymnosperms (d) angiosperms and fungi.
Last Answer : (c) angiosperms and gymnosperm
Description : .A well developed archegonium with neck consisting of 4-6 rows and neck canal cells, characterises (a) gymnosperms and flowering plants (b) pteridophytes and gymnosperms (c) gymnosperms only (d) bryophytes and pteridophytes
Last Answer : d) bryophytes and pteridophytes.
Description : .Multicellular branched rhizoids and leafy gametophytes are the characteristics of (a) some bryophytes (b) pteridophytes (c) all bryophytes (d) gymnosperms.
Last Answer : (a) some bryophytes
Description : In which of the following would you place the plants having vascular tissue lacking seeds? (a) Pteridophytes (b) Gymnosperms (c) Algae (d) Bryophytes
Last Answer : (a) Pteridophytes
Description : Pteridophytes differ from bryophytes and thallophytes in having (a) vascular tissues (b) motile antherozoids (c) archegonia (d) alternation of generations
Last Answer : (a) vascular tissues
Description : In bryophytes and pteridophytes, transport of male gametes requires (a) birds (b) water (c) wind (d) insects
Last Answer : (b) water
Description : Absorptive heterotrophic nutrition is exhibited by (a) algae (b) fungi (c) bryophytes (d) pteridophytes.
Last Answer : (b) fungi
Description : $ A simple but dominant gametophyte is called Prothallus. ! Prothallus is found in Bryophytes.
Last Answer : $ A simple but dominant gametophyte is called Prothallus. ! Prothallus is found in Bryophytes. A. If both As ... wrong D. If both As and R are wrong.
Description : Sporophyte of Marchantia. -Biology
Description : What is a sporophyte? -Biology
Description : What is Sporophyte ?
Last Answer : The deployed phase of a plant is called sporophyte.
Last Answer : Sporophyte The first Cells Of Name ' Uspor '
Description : Consider the following statements: Marchantia polymorpha (1) Is dioecious (2) Possesses antheridiophores and archegoniophores (3) Lacks foot and seta in its sporophyte (4) Is heterosporous
Description : .Consider the following four statements whether they are correct or wrong. A. The sporophyte in liverworts is more elaborate than that in mosses. B. Salvinia is heterosporous. C. The life-cycle in all seed-bearing plants is diplontic ... are (a) A and C (b) A and D (c) B and C (d) A and B
Last Answer : (b) A and D
Description : Read the following statements (A - E) and answer the question which follows them. (A) In liverworts, mosses and ferns gametophytes are free-living. (B) Gymnosperms and some ferns are heterosporous. (C) Sexual ... How many of the above statements are correct? (a) Three (b) Four (c) One (d) Two
Last Answer : (a) Three
Description : What is a sporophyte?
Last Answer : Ans: It is a plant body which produces spores.