Female cone is absent in which gymnosperm :
Ciliated male gametes are found in :
[Pb PMT 1997]
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How many species of Cycas are found in India :
How many kinds of leaves are found in Cycas:
Inverted 'Omega' (W) shaped arrangement of vascular bundles are found in :
Pollen grains are shed at ......... celled stage in Cycas :
How many archegonia develop on one gametophyte of Cycas :
The number of prothallial cells in male gametophyte of Cycas is :
Male gametes are largest and visible to naked eyes in :
Germination of Cycas seed is :
[CPMT 2002]
The number of neck canal cells in the archegonium of Cycas is/are :
The number of cotyledons in seed of Cycas is/are :
Cycas plant is like ............ in appearance :
The coralloid roots of Cycas have an algal zone and the alga present in this zone is
[CPMT 1991]
The neck canal cells are absent in the archegonia of :
[Re. Ex. CPMT 1991]
Cycas has an embryo with two cotyledons yet it is not classified as dicotyledonous plant because:
[CBSE 2001]
Number of ovules present on megasporophyll of Cycas is :
Multiciliate male gametes (spermatozoids) are found in :
[CPMT 1999, BHU 1999]
Which of the following is not the characteristic feature of Cycas :
In the plants of Cycas, the male cone lacks :
The girdle leaf traces in Cycas go to leaves :