Heterospory in Selaginella -Biology

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.

Which one does not occur is Seleaginella? (a) Heterospory (b) Hetorophylly (c) Homospory (d) Ligulate Leaves

Description : Which one does not occur is Seleaginella? (a) Heterospory (b) Hetorophylly (c) Homospory (d) Ligulate Leaves

Last Answer : Ans. ((c))

Which one has the largest gametophyte? (a) Cycas (b) Angiosperm (c) Selaginella (d) Moss

Description : Which one has the largest gametophyte? (a) Cycas (b) Angiosperm (c) Selaginella (d) Moss

Last Answer : (d) Moss

.Match items in column I with those in columnII. Column I Column II (A) Peritrichous flagellation (J) Ginkgo (B) Living fossil (K) Macrocystis (C) Rhizophore (L) Escherichia coli (D) Smallest flowering plant (M) Selaginella (E) Largest perennial alga (N) Wolffia Select the correct answer from the following. (a) A - L; B - J; C - M; D - N; E - K (b) A - K; B - J; C - L; D - M; E - N (c) A - N; B - L; C - K; D - M; E - J (d) A - J; B - K; C - N; D - L; E - M

Description : .Match items in column I with those in columnII. Column I Column II (A) Peritrichous flagellation (J) Ginkgo (B) Living fossil (K) Macrocystis (C) Rhizophore (L) Escherichia coli (D) Smallest flowering plant (M) Selaginella (E) Largest perennial ... - M; E - J (d) A - J; B - K; C - N; D - L; E - M

Last Answer : (a) A - L; B - J; C - M; D - N; E - K

A plant in which sporophytic generation is represented by zygote is (a) Pinus (b) Selaginella (c) Chlamydomonas (d) Dryopteris

Description : A plant in which sporophytic generation is represented by zygote is (a) Pinus (b) Selaginella (c) Chlamydomonas (d) Dryopteris

Last Answer : (c) Chlamydomonas

Which one is the most advanced from evolutionary view point? (a) Selaginella (b) Funaria (c) Chlamydomonas (d) Pinus

Description : Which one is the most advanced from evolutionary view point? (a) Selaginella (b) Funaria (c) Chlamydomonas (d) Pinus

Last Answer : (d) Pinus

Which one of the following is categorised under living fossils? (a) Pinus (b) Cycas (c) Selaginella (d) Metasequoia

Description : Which one of the following is categorised under living fossils? (a) Pinus (b) Cycas (c) Selaginella (d) Metasequoia

Last Answer : (b) Cycas

Examine the figures A, B, C and D. In which one of the four options all the items A, B, C and D are correct? A B C D (a) Chara Marchantia Fucus Pinus (b) Equisetum Ginkgo Selaginella Lycopodium (c) Selaginella Equisetum Salvinia Ginkgo (d) Funaria Adiantum Salvinia Riccia

Description : Examine the figures A, B, C and D. In which one of the four options all the items A, B, C and D are correct? A B C D (a) Chara Marchantia Fucus Pinus (b) Equisetum Ginkgo Selaginella Lycopodium (c) Selaginella Equisetum Salvinia Ginkgo (d) Funaria Adiantum Salvinia Riccia

Last Answer : (c) Selaginella Equisetum Salvinia Ginkgo

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 have VAM. D. Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic. E. In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte. (a) A, D and E (b) B, C and E (c) A, C and D (d) B, C and D

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

Which of the following statements is correct? (a) Ovules are not enclosed by ovary wall in gymnosperms. (b) Selaginella is heterosporous, while Salvinia is homosporous. (c) Horsetails are gymnosperms. (d) Stems are usually unbranched in both Cycas and Cedrus.

Description : Which of the following statements is correct? (a) Ovules are not enclosed by ovary wall in gymnosperms. (b) Selaginella is heterosporous, while Salvinia is homosporous. (c) Horsetails are gymnosperms. (d) Stems are usually unbranched in both Cycas and Cedrus.

Last Answer : (a) Ovules are not enclosed by ovary wall in gymnosperms.

Evolutionary important character of Selaginella is (a) heterosporous nature (b) rhizophore (c) strobili (d) ligule.

Description : Evolutionary important character of Selaginella is (a) heterosporous nature (b) rhizophore (c) strobili (d) ligule.

Last Answer : (a) heterosporous nature

Which one of the following is not common between Funaria and Selaginella? (a) Archegonium (b) Embryo (c) Flagellate sperms (d) Roots

Description : Which one of the following is not common between Funaria and Selaginella? (a) Archegonium (b) Embryo (c) Flagellate sperms (d) Roots

Last Answer : (d) Roots

Heterospory and seed habit are often exhibited by a plant possessing (a) petiole (b) ligule (c) bract (d) spathe.

Description : Heterospory and seed habit are often exhibited by a plant possessing (a) petiole (b) ligule (c) bract (d) spathe.

Last Answer : (b) ligule

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

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

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 lacks archegonia (c) megaspores possess endosperm and embryo surrounded by seed coat (d) embryo develops in female gametophyte which is retained on parent sporophyte.

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

Which of the following statement is correct ? (1) Ovules are not enclosed by ovary wall in gymnosperms (2) Selaginella is heterosporous, while Salvinia is homosporous (3) Horsetails are gymnosperms (4) Stems are usually unbranched in both Cycas and Cedrus

Description : Which of the following statement is correct ? (1) Ovules are not enclosed by ovary wall in gymnosperms (2) Selaginella is heterosporous, while Salvinia is homosporous (3) Horsetails are gymnosperms (4) Stems are usually unbranched in both Cycas and Cedrus

Last Answer : (1) Ovules are not enclosed by ovary wall in gymnosperms

Resurrection plant is a. Spirogyra b. Selaginella c. Lichen d. Rhynia

Description : Resurrection plant is a. Spirogyra b. Selaginella c. Lichen d. Rhynia

Last Answer : b. Selaginella

Heterospory in Selaginella -Biology

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