In Cycas, archegonium has following number of neck canal cells:
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Transfusion tissue is seen in leaves of
The ovuliferous scales of pine cone are comparable to
Which of the following is not a characteristic feature of Cycas ?
Mucilage canals of Cycas stem are
Pittus is a gymnosperm as it has
The stem of Pinus plant has
In Pinus, pollination takes place with the help of
Sulphur shower is related to
The revoluta and circinalis are the species of
Which of the following orders resembles much more to angiosperms ?
Algal zone is characteristic of
Each stamen in Cycas is a representation of
Dimorphic leaves are characteristic of
Cycas is said to be a living fossil because
Largest antherozoids are found in
Dwarf shoots of Pinus species have
Perisperm is remnants of
Monoxylic wood consists of
Fertilization in gymnosperms is
Which of the following statements is not true of Pinus ?
Which of the following plants bears seeds but not fruits ?
phloem of gymnosperms is devoid of
Coralloid roots are found in :
Non-porous wood occurs in
Endosperm in gymnosperms is formed
The wood of Cycas consists of
Cycas and Dryopteris resemble each other in the presence of
Which algae are commonly found in coralloid roots of Cycas ?
Neck canal cells are absent in
Winged seeds are found in
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