761. Apical cell of thallus in Ulotrhix is

A Dome shaped
B Cylindrical
C Rectangular
D Club shaped
Answer :   Dome shaped
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762. Archegonium of fern has

A Four neck canal cells
B Binucleated one neck canal cell
C Uni nucleated two neck canal cells
D Three neck canal cell
Answer :   Binucleated one neck canal cell
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763. In the prothallus of a vascular cryptogam, the antherozoids and eggs mature at different times. As a result

A There is no change is success rate of fertilization
B There is high degree of sterility
C One can conclude that the plant is apomictic
D Self fertilization is prevented
Answer :   Self fertilization is prevented
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764. A student came from U.P. to Rajasthan to study on Riccia discolor a species of Riccia found in dry habitat. When dry season becomes staft the observed, a mass of multicellular structure formed, due to fast division of apical cell of the apex of every branch, in which food materials stored and develop a thick protective layer around it after degeneration of marginal cell. This perennating body called as

A Rhizoids
B Tuber
C Rhizom
D Persistente apices
Answer :   Tuber
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765. The mesophyll tissue of Pinus needle is

A Collenchyma
B Spongy parenchyma
C Armed parenchyma
D Transfusion tissue
Answer :   Armed parenchyma
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766. The positive evidnece of aquatic ancestry of Bryophyte is

A Their green colour
B Thread like protonema
C Flagellated antherozoids
D Some bryophytes are sill aquatic
Answer :   Flagellated antherozoids
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767. Epiphloephytes algae arise on

A Animals
B Leaves surface
C Bark of trees
D Phloem of leaves
Answer :   Bark of trees
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768. Selaginella s

A Oogamous and homosporous plant
B Oogamous and heterosporous plant
C Isogamous & heterosporous plant
D Isogamous & homosporous plant
Answer :   Oogamous and heterosporous plant
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769. 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.
(D) In Pinus male and female cones are borne on different trees.
The two wrong statements together are

A Statements (A) and (C)
B Statements (A) and (D)
C Statements (B) and (C)
D Statements (A) and (B)
Answer :   Statements (A) and (D)
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770. Pyrenoids are composed of

A Starch
B Protein
C Starch & lipid
D Starch & protein
Answer :   Starch & protein
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