281. Which one of the following plants
is monoecious?
(1) Papaya
(2) Pinus
(3) Marchantia
(4) Cycas
282. Select one of the following pairs
of important features distinguishing Gnetum from Cycas and Pinus and showing affinities
with angiosperms
(1) perianth and two integuments
(2) absence of resin duct and leaf
venation
(3) embryo development and apical meristem
(4) presence of vessel elements and absence of archegonia
283. Which one of the following is
heterosporous?
(1) Adiantum
(2) Dryopteris
(3) Equisetum
(4) Salvinia
284. In which one of the following, male
and female gametophytes do not have free living independent existence?
(1) Polytrichum
(2) Pteris
(3) Cedrus
(4) Funaria
285. Spore dissemination in some
liverworts is aided by
(1) peristome teeth
(2) indusium
(3) elaters
(4) calyptra
286. Some hyperthermophilic organisms
that grow in highly acidic (pH2) habitats belong to the two groups:
(1) Protists and mosses
(2) Eubacteria and archaea
(3) Liverworts and yeasts
(4) Cyanobacteria and diatoms
287. Algae have cell wall made up of:
(1) pectins, cellulose and proteins
(2) cellulose, galactans and mannans
(3) cellulose, hemicellulose and pectins
(4) hemicellulose, pectins and proteins
288. Male and female gametophytes are
independent and free - living in:
(1) Pinus
(2) Mustard
(3) Sphagnum
(4) Castor
289. Which one of the following is a
vascular cryptogam?
(1) Cedrus
(2) Ginkgo
(3) Equisetum
(4) Marchantia
290. Which one of the following has
haplontic life cycle?
(1) Wheat
(2) Polytrichum
(3) Funaria
(4) Ustilago
291. Read the following five statements
(A - E) and answer the question. (How many of the above statements are correct?)
(A) In Equisetum the female gametophyte
is retained on the parent sporophyte.
(B) In Ginkgo male gametophyte is not independent.
(C) The sporophyte in Riccia is more
developed than that in Polytrichum.
(D) Sexual reproduction in Volvox is isogamous.
(E) The spores of slime molds lack cell
walls.
(1) Four
(2) Two
(3) One
(4) Three
292. Which one of the following is
common to multicellular fungi, filamentous algae and protonema of mosses
(1) Mode of Nutrition
(2) Diplontic life cycle
(3) Multiplication by fragmentation
(4) Members of kingdom plantae
293. Which one of the following is a
correct statement?
(1) Antheridiophores and
archegoniophores are present in pteridophytes.
(2) Pteridophyte gametophyte has a protonemal
and leafy stage
(3) Origin of seed habit can be traced in pteridophytes
(4) In gymnosperms female gametophyte is
free-living
294. Cycas and Adiantum resemble each
other in having:
(1) Cambium
(2) Seeds
(3) Vessels
(4) Motile Sperms
295. In angiosperms, functional
megaspore develops into
(1) endosperm
(2) embryo sac
(3) pollen sac
(4) ovule
296. Which of the following is not
correctly matched for the organism and its cell wall degrading enzyme?
(1) Fungi-Chitinase
(2) Plant cells-Cellulase
(3) Bacteria-Lysozyme
(4) Algae-Methylase
297. Read the following statements (A-E)
and answer the question which follows them. (How many of the above statements
are correct?)
1. In liverworts, mosses and ferns gametophytes
are free-living
2. Gymnosperms and some ferns are heterosporous.
3. Sexual reproduction in Fucus, Volvox
and Albugo is oogamous
4. The sporophyte in liveworts is more elaborate
than that in mosses
5. Both, Pinus and Marchantia are dioecious
(1)
Four
(2) Two
(3) One
(4) Three
298. Isogamous condition with
non-flagellated gametes is found in:
(1) Fucus
(2) Spirogyra
(3) Chlamydomonas
(4) Volvox
299. Besides paddy fields cyanobacteria
are also found inside vegetative part of:
(1) Psilotum
(2) Cycas
(3) Pinus
(4) Equisetum
300. Which one of the following pairs is
wrongly matched?
(1) Viroids - RNA
(2) Ginkgo -Archegonia
(3) Mustard - Synergids
(4) Salvinia - Prothallus