Biology questions
20584 published questions with worked solutions.
- A mature pollen grain of Pinus has
- Which one of the following plants is monoecious?
- Conifers differ from grasses in the
- The type of pollination in Cycas is
- Number of meioses for formation of 64 zygotes in angiosperm is 80 but in gymnosperms number of meioses for formation of 64...
- Winged pollen grains are found in
- Gymnosperms lack fruits, why?
- Match the following columns and select the correct option. Column-I: (A) Apospory in Pteris takes place in (B) Endosperm in Cycas...
- In which of the following features, Cycas resembles with angiosperms?
- In gymnosperms, the ovule is naked because
- Ovules of gymnosperm is
- In Cycas, diploxylic vascular bundles are found in
- Pollen sac in Cycas is called
- Which one of the following is a gymnosperm?
- Cycas stem shows
- Resin and turpentine are products of
- Fruits are not found in gymnosperms because
- Sterile part of Cycas microsporophyll is
- Which of the following plants produces seeds but not flowers?
- A prokaryotic autotrophic nitrogen fixing symbiont is found in