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 : $ The dominant phase in Bryophytes is called Thallus. ! Thallus of Funaria is monoecious and autoicous.
Last Answer : $ The dominant phase in Bryophytes is called Thallus. ! Thallus of Funaria is monoecious and autoicous. A. ... wrong D. If both As and R are wrong.
Description : The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Sperrnatophyta (4) Thallophyta
Last Answer : (1) Pteridophyta Explanation: Prothallus is usually the gametophyte stage in the life of a fern or other pteridophyte. The prothallium develops from a germinating spore. It is a short-lived and inconspicuous heart-shaped structure.
Description : The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Spermatophyta (4) Thallophyta
Last Answer : Pteridophyta
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 : $ Xylem is a simple permanent tissue. ! Xylem is present in Bryophytes.
Last Answer : $ Xylem is a simple permanent tissue. ! Xylem is present in Bryophytes. A. If both As and R are correct ... R is wrong D. If both As and R are wrong.
Description : Compare the gametophyte and sporophyte of Bryophytes with that of Pteridophytes.
Last Answer : Compare the gametophyte and sporophyte of Bryophytes with that of Pteridophytes.
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 : Why is gametophyte dominant in moss? -Biology
Last Answer : answer:
Description : $ Rhizoids of female gametophyte of selaginella are multicellular. ! Selaginella is homosporous.
Last Answer : $ Rhizoids of female gametophyte of selaginella are multicellular. ! Selaginella is homosporous. A. If both As ... D. If both As and R are wrong.
Description : Which portion of the plant life cycle is dominant in bryophytes? -Biology
Description : Why are bryophytes gametophytes dominant? -Biology
Description : $ Sperm in Bryophytes are flagellated. ! Sperms in bryophytes move to the mature and dehisced archegonia, under the effect of chemicals.
Last Answer : $ Sperm in Bryophytes are flagellated. ! Sperms in bryophytes move to the mature and dehisced archegonia, under ... D. If both As and R are wrong.
Description : $ Those two pairs of genes which if present in dominant stage, do not produce any expression but when present collectively in dominant stage, produce
Last Answer : $ Those two pairs of genes which if present in dominant stage, do not produce any expression but when ... wrong D. If both As and R are wrong.
Description : Explain the lifecycle and nature of a fern prothallus. -Biology
Description : Difference between protonema and prothallus? -Biology
Description : What is Prothallus?
Last Answer : Prothallus is an independent structure developed in pteridophytes which produces male and female gametes,
Description : .Which one of the following pairs is wrongly matched? (a) Ginkgo – Archegonia (b) Salvinia – Prothallus (c) Viroids – RNA (d) Mustard – Synergids
Last Answer : (b) Salvinia – Prothallus
Description : In the prothallus of a vascular cryptogam, the antherozoids and eggs mature at different times. As a result (a) there is high degree of sterility (b) one can conclude that the plant is apomictic (c) self fertilization is prevented (d) there is no change in success rate of fertilization.
Last Answer : (c) self fertilization is prevented
Description : Bryophytes are often called as amphibian plant because they : (1) appear like frog (2) are found both in water and on land (3) do not have habitat preference (4) can eat insects
Last Answer : (2) are found both in water and on land Explanation: Bryophytes are simple low growing plants, anchored to the ground or to tree bark by tiny filamentous rhizoids.
Last Answer : are found both in water and on land
Description : Double fertilization is found in: (a) Bryophytes (b) Angiosperms (c) Gymnosperms (d) Pteridophytes
Last Answer : Ans. ((b))
Description : Why is the embryo sac called the female gametophyte? -Biology
Description : Why sexual and asexual ulva plant are called as sporophyte gametophyte?
Last Answer : What is the answer ?
Description : Development of saprophyte from gametophyte, is called (a) Apomixis (b) Apospory (c) Apogamy (d) Dip1ospory
Last Answer : Ans. ((c))
Description : A sexual cell in plants is called a. Gamete b. Gametophyte c. Gamopetalous d. Gamosepalous
Last Answer : Gamete
Description : f we cross pure-bred tall (dominant) pea plant with pure-bred dwarf (recessive) pea plant we will get pea plants of F1 generation. If we now self-cross the pea plant of F2 generation, ... plants not found in F2 generation but appeared in F2 generation, mentioning the reason for the same. -Biology
Last Answer : Answer. (a) All plants of F1 generation will be tall plants. (b) 3:1 (c) Dwarf trait is recessive trait which was not expressed in the F1 generation, the recessive trait gets expressed in the F2 generation after self pollination.
Description : Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tend to be (a) smaller but to have larger sex organs (b) larger but to have smaller sex organs (c) larger and to have larger sex organs (d) smaller and to have smaller sex organs.
Last Answer : (d) smaller and to have smaller sex organs.
Description : What is the reproductive advantage of Coniferous trees to drop their gametophyte containing pine cones during the winter?
Last Answer : So they're on the ground in the spring, when the have the best chance of beating out the smallish ground cover before they grow too big. If you're looking at a relatively mature forest, the saplings ... the ground cover, but if the ground cover were already there, they wouldn't make it above it.
Description : Explain development of female gametophyte in a flowering plant. -Biology
Description : Difference between sporophyte and gametophyte -Biology
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 : Why is the gametophyte generation considered haploid? -Biology
Description : Strobilus gametophyte or sporophyte -Biology
Description : Which is the structure in which the female gametophyte develops? -Biology
Description : In pines the female gametophyte contains? -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 : 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
Description : A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte
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 : What is gametophyte?
Last Answer : The adult plant body of a bryophyte which produces male and female gametes is called gametophyte.
Description : Formation of gametophyte directly from sporophyte without meiosis is (a) apospory (b) apogamy (c) parthenogenesis (d) amphimixis.
Last Answer : (a) apospory