Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
Which of the following statements regarding apomixis is INCORRECT?
Seeds are formed without fertilization
It leads to clonal propagation
It maintains hybrid vigor over generations
It is seen in some species of Asteraceae and grasses
The process of apomixis bypasses which critical step in sexual reproduction?
Pollination
Meiosis and fertilization
Seed dispersal
Fruit formation
Which of the following is NOT a potential evolutionary advantage of apomixis?
Increased genetic diversity within populations
Faster colonization of new habitats
Maintenance of advantageous genotypes in unstable environments
Reduced reliance on pollinators
In a species exhibiting pseudogamy, the pollen is essential for:
Embryo development
Endosperm development
Seed coat formation
Fruit development
Identify the INCORRECT statement regarding adventive embryony:
It involves the development of embryos from the nucellus or integuments.
It is a type of sporophytic apomixis.
The embryos are genetically identical to the parent plant.
It leads to the formation of multiple embryos within a seed.
A plant species exhibits diplospory. Which of the following statements accurately describes the origin of the embryo sac in this species?
The embryo sac develops directly from the megaspore mother cell without meiosis.
The embryo sac develops from a haploid megaspore after meiosis.
The embryo sac develops from a nucellar cell.
The embryo sac develops from an integumentary cell.
Which combination of reproductive processes would result in the highest degree of genetic uniformity within a plant population?
Apomixis and self-fertilization
Apomixis and cross-fertilization
Sexual reproduction and self-fertilization
Sexual reproduction and cross-fertilization
Certain apomictic plants produce seeds without fertilization. How would the genetic makeup of the endosperm in such a plant likely differ from a sexually reproducing angiosperm?
It would be genetically identical to the maternal tissue.
It would be a mixture of maternal and paternal genes.
It would be entirely paternal in origin.
It would be haploid.
Which of the following is a defining characteristic of apomixis?
Seed formation without fertilization
Development of fruit without pollination
Fusion of male and female gametes
Formation of diploid spores
