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