Prepare for NEET Biology Plant Kingdom (Gymnosperm) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert guidance to understand seed-bearing, non-flowering plants and their life cycles.
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.
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.
Which of the following statements is INCORRECT regarding the gametophyte of gymnosperms?
It is reduced and dependent on the sporophyte.
It develops within the sporangium.
It is multicellular.
It is photosynthetic.
Which of these features is NOT characteristic of gymnosperms?
Naked seeds
Presence of vascular tissue
Double fertilization
Dominant sporophyte
The dominant photosynthetic generation in the gymnosperm life cycle is the:
Gametophyte
Sporophyte
Prothallus
Sporangium
The presence of strobili indicates that a plant belongs to which of the following plant divisions?
Pteridophyta
Gymnospermophyta
Bryophyta
Anthophyta
What is the primary function of the strobili in the life cycle of a pine tree?
Photosynthesis
Water Transport
Sexual Reproduction
Asexual Reproduction
Which of the following statements regarding cell division is correct?
Mitosis produces genetically identical daughter cells, while meiosis produces genetically diverse daughter cells.
Both mitosis and meiosis produce diploid daughter cells.
Mitosis occurs in germ cells, while meiosis occurs in somatic cells.
Both mitosis and meiosis produce four daughter cells.
