MCQs of biology – Gymnosperms

Gymnosperms are naked seeded plants as they lack:

Ovules with pollen chamber, integument single and ovule with archegonia are found in:

Cycas differs from pinus in producing:

In Cycas, the pollens are discharged at:

The male gametophyte at maturity in Cycas is at:

In gymnospenns, development of microsporangtum is of:

The ploidy level of integument, nucellus and female prothallus in ovule of Cycas is:

Siphonogamy occurs in:

Winged pllens (pollens with two saci) are produced in:

In gymnosperms, the endosperm is always haploid due to its:

Cataphylls are also called:

Initegmic and orthotropuous ovules are found in:

Thickly cuticularized epidermis with sunken tomato in leaves is characteristics of:

Transfusion tissue occurs in:

The development of femalegametophyte in Cycas or Pinus is:

Megaspore gives rise to embryosae with egg apparatus, polars and synergids in:

The female gamete (ovum ) in gymnosperms develops in:

Nonmotile male gametes are found in:

Find out the odd:

Living fossils are;

Largest sized ovule and largest male gametes are produced by :

Uniseriate bordered pits are found on the radial walls of xylem tracheids in:

Plant body is strictly heterosporous in:

The archegonia of gymnosperms lack:

Coralloid roots of Cycas is:

In radial longitudinal section of Pinus stem:

Girdled leaf traces are found in:

Cycas lacks:

Hard,massive and pycnoxylic wood is produced in:

Clusters of male cones are produced in:

Time required between pollination and fertilization in Pinus is:

Spur of Pinus longifolia is:

Monoecious plant body is found in:

Resin canals are found distributed in Pinus stem in:

The mesophyll cells are provided with peg like foldings in:

Gymnospermous plants are strictly:

Spur is produced by:

Annual rings are well marked in the main shoot of:

Chilgoza fruits are produced by:

Which is not found in gymnosperms?

Blue pine is:

Coralloid roots of Cycas contain endophytic colony of:

The function of transfusion tissue in gymnosperms is:

Mesarch xylem occurs in vascular bundle of:

Non-porous wood is produced by:

Pinus exhibits:

Xylem with vessels is found in which gymnosperms?

Mature seeds are found in pinus female cones of:

Persistent leaf base’s scare are quite distinet on the stem of:

The foliage leaves of Cycas are: