Description : Flagellated male gametes are present in all the three of which one of the following sets? (a) Zygnema, Saprolegnia and Hydrilla (b) Fucus, Marsilea and Calotropis (c) Riccia, Dryopteris and Cycas (d) Anthoceros, Funaria and Spirogyra
Last Answer : (c) Riccia, Dryopteris and Cycas
Description : Which one of the following shows isogamy with non-flagellated gametes? (a) Sargassum (b) Ectocarpus (c) Ulothrix (d) Spirogyra
Last Answer : (d) Spirogyra
Description : Male gametes are flagellated in (a) Ectocarpus (b) Spirogyra (c) Polysiphonia (d) Anabaena
Last Answer : (a) Ectocarpus
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 : The common mode of sexual reproduction in Chlamydomonas is (a) isogamous (b) anisogamous (c) oogamous (d) hologamous.
Last Answer : (a) isogamous
Description : Select the wrong statement. (a) In oomycetes, female gamete is smaller and motile, while male gamete is larger and non- motile. (b) Chlamydomonas exhibits both isogamy and anisogamy and ... in structure, function and behaviour. (d) Anisogametes differ either in structure, function or behaviour.
Last Answer : (a) In oomycetes, female gamete is smaller and motile, while male gamete is larger and non- motile.
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 : Write the characteristics of division that includes members like Chlamydomonas, Fucus, Gelidium, etc.
Last Answer : Write the characteristics of division that includes members like Chlamydomonas, Fucus, Gelidium, etc.
Description : Zygotic meiosis is characteristic of (a) Fucus (b) Funaria (c) Chlamydomonas (d) Marchantia
Last Answer : (c) Chlamydomonas
Description : Zygotic meiosis is characteristic of; (1) Fucus (2) Funaria (3) Chlamydomonas (4) Marchantia
Last Answer : (3) Chlamydomonas
Description : The sexual reproduction is absent in (a) Spirogyra (b) Nostoc (c) Ulothrix (d) Volvox.
Last Answer : b) Nostoc
Description : An example of colonial alga is (a) Volvox (b) Ulothrix (c) Spirogyra (d) Chlorella
Last Answer : (a) Volvox
Description : An example of colonial alga is : (1) Volvox (2) Ulothrix (3) Spirogyra (4) Chlorella
Last Answer : (1) Volvox
Description : Hormogonia are the vegetative reproductive structures of (a) Chlamydomonas (b) Spirogyra (c) Oscillatoria (d) Ulothrix
Last Answer : Ans. ((c))
Description : Anoxygenic photosynthesis is characteristic of (a) Rhodospirillum (b) Spirogyra (c) Chlamydomonas (d) Ulva.
Last Answer : (a) Rhodospirillum
Description : The product of conjugation in Spirogyra or fertilization of Chlamydomonas is (a) zygospore (b) zoospore (c) oospore (d) carpospore.
Last Answer : (a) zygospore
Description : Which one of the following is wrongly matched? (a) Spirogyra - Motile gametes (b) Sargassum - Chlorophyll (c) Basidiomycetes - Puffballs (d) Nostoc - Water blooms
Last Answer : (a) Spirogyra - Motile gametes
Description : Ulothrix can be described as a (a) filamentous alga lacking flagellated reproductive stages (b) membranous alga producing zoospores (c) filamentous alga with flagellated reproductive stages (d) non-motile colonial alga lacking zoospores.
Last Answer : (c) filamentous alga with flagellated reproductive stages
Description : Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as (a) in situ conservation by sacred groves (b) in situ cryo-conservation of biodiversity (c) in situ conservation of biodiversity (d) advanced ex situ conservation of biodiversity.
Last Answer : (d) advanced ex situ conservation of biodiversity.
Description : Columella is a specialized structure found in the sporangium of (a) Spirogyra (b) Ulothrix (c) Rhizopus (d) none of these.
Last Answer : (c) Rhizopus
Description : Which of the following is a flagellated protozoan
Last Answer : Which of the following is a flagellated protozoan A. Amoeba B. Entamoeba C. Palsmodium D. Trypanosoma
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 : A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte
Description : Select the wrong statement. (a) Bacterial cell wall is made up of peptidoglycan. (b) Pili and fimbriae are mainly involved in motility of bacterial cells. (c) Cyanobacteria lack flagellated cells. (d) Mycoplasma is a wall-less microorganism.
Last Answer : (b) Pili and fimbriae are mainly involved in motility of bacterial cells.
Description : Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of Phylum (a) Mollusca (b) Protozoa (c) Coelenterata (d) Porifera.
Last Answer : (d) Porifera.
Description : In case of poriferans, the spongocoel is lined with flagellated cells called (a) oscula (b) choanocytes (c) mesenchymal cells (d) ostia.
Last Answer : (b) choanocytes
Description : Slime molds differ from the moldy fungi A- in their mode of nutrition: phagocytosis for the slime molds; absorptive heterotroph for moldy fungi B- in that the moldy fungi produce amoeboid or flagellated cells and the slime molds do not C- Both (a) and (b) D- none of the above
Last Answer : in their mode of nutrition: phagocytosis for the slime molds; absorptive heterotroph for moldy fungi
Description : In case of poriferans, the spongocoel is lined with flagellated cells called: (1) oscula (2) choanocytes (3) mesenchymal cells (4) ostia
Last Answer : (2) choanocytes
Description : What is fucus vesiculosus used for? -Biology
Last Answer : answer:
Description : Fucus paraphysis -Biology
Description : What do you know about Fucus?
Last Answer : Fucus is a large brown seaweed
Description : The guts of cow and buffalo possess (a) methanogens (b) cyanobacteria (c) Fucus sp. (d) Chlorella sp.
Last Answer : (a) methanogens
Description : Life cycles of Ectocarpus and Fucus respectively are (a) diplontic, haplodiplontic (b) haplodiplontic, diplontic (c) haplodiplontic, haplontic (d) haplontic, diplontic
Last Answer : (b) haplodiplontic, diplontic
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
Description : Mannitol is the stored food in (a) Porphyra (b) Fucus (c) Gracillaria (d) Chara.
Last Answer : (b) Fucus
Description : Life cycle of Ectocarpus and Fucus respectively are: (1) Diplontic, Haplodiplontic (2) Haplodiplontic, Diplontic (3) Haplodiplontic, Haplontic (4) Haplontic, Diplontic
Last Answer : (2) Haplodiplontic, Diplontic
Description : Volvox reproduction -Biology
Description : Where do volvox live? -Biology
Description : Volvox heterotrophic or autotrophic. -Biology
Description : Is a volvox multi celled or single celled?
Last Answer : What is the answer ?
Description : How many cells do volvox?
Description : Describe locomotion of Euglena and volvox?
Last Answer : Locomotion in Euglena: Euglena move with the help of flagellum. Whipping action of flagellum caused it to rotate and at the same time it move forward. It does not move in straight line but it moves ... path. Locomotion of Volvox: It floats freely over water surface and looks like a minute ball.
Description : The correct sequence of plants in a hydrosere is (a) Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak (b) Pistia → Volvox → Scirpus → Hydrilla → Oak → Lantana (c) Oak → Lantana → Volvox → Hydrilla → Pistia → Scirpus (d) Oak → Lantana → Scirpus → Pistia → Hydrilla → Volvox.
Last Answer : (a) Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak
Description : Which of the following pairs is of unicellular algae? (a) Laminaria and Sargassum (b) Gelidium and Gracilaria (c) Anabaena and Volvox (d) Chlorella and Spirulina
Last Answer : (d) Chlorella and Spirulina
Description : Nuclear membrane is absent in (a) Penicillium (b) Agaricus (c) Volvox (d) Nostoc.
Last Answer : (d) Nostoc.
Description : True nucleus is absent in (a) Vaucheria (b) Volvox (c) Anabaena (d) Mucor.
Last Answer : (c) Anabaena
Description : Nuclear membrane is absent in (1) Nostoc (2) Penicillium (3) Agaricus (4) Volvox
Last Answer : (1) Nostoc
Description : How many gametes are need for non-identical twins?
Last Answer : Feel Free to Answer
Description : Genes are not found in pairs - (1) in body cells (2) in ovary after fertilization (3) in gametes (4) in zygotes
Last Answer : (3) in gametes Explanation: Genes are a part of the chromosome and are found in pairs in somatic cells. One member of the gene pair segregates into a gamete, thus each gamete only carries one member of the gene pair. Gametes unite at random and irrespective of the other gene pairs involved.
Description : Gametes have a. homologous chromosomes. b. twice the number of chromosomes found in body cells. c. two sets of chromosomes. d. one allele for each gene.
Last Answer : d. one allele for each gene.