Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
Prokaryotic cells typically reproduce by:
Mitosis
Meiosis
Binary fission
Fragmentation
The double fertilization event unique to angiosperms results in the formation of:
A diploid zygote and a triploid endosperm
Two diploid zygotes
A haploid zygote and a diploid endosperm
Two haploid zygotes
In pteridophytes, the antherozoids are characterized by:
Biflagellate and straight
Multiflagellate and spirally coiled
Aflagellate and amoeboid
Uniflagellate and comma-shaped
Which of the following statements regarding the development of the male gametophyte in Pinus is INCORRECT?
Microspore is the first cell of the male gametophyte.
The prothallial cell eventually degenerates.
The generative cell directly develops into the sterile cell and two male gametes.
A tube cell and a generative cell are formed after the first mitotic division of the microspore.
In gymnosperms, the ovule is considered naked because:
It lacks an integument.
It is not enclosed within an ovary.
It is exposed before fertilization.
It lacks a megasporangium.
The 'polyembryony' observed in some gymnosperms like Pinus refers to:
The development of multiple seeds within a single cone.
The development of multiple embryos within a single ovule.
The fusion of multiple male gametes with a single egg cell.
The development of multiple archegonia within a single ovule.
Which of the following gymnosperms does NOT possess motile sperm?
Cycas
Ginkgo
Pinus
Gnetum
In gymnosperms, the megaspore mother cell undergoes:
Mitosis to form two megaspores, both of which are functional.
Meiosis to form four megaspores, all of which are functional.
Meiosis to form four megaspores, of which one is functional.
Mitosis to form four megaspores, of which three are functional.
The phenomenon of double fertilization in angiosperms results in the formation of:
Two diploid zygotes
A diploid zygote and a triploid primary endosperm nucleus
A triploid zygote and a diploid primary endosperm nucleus
Two triploid primary endosperm nuclei
