The development of fruits without fertilization is called:
Polyembryony
Apomixis
Parthenocarpy
Parthenogenesis
Related Questions
Which of the following statements are correct?
I. A multicellular organism is composed of mainly three types of cells
II. Undifferentiated cells are stem cells and are unspecialised cells, which usually possesses the power of division
III. Differentiated cells are post-mitotic cells and are specialised to perform specific functions
IV. Dedifferentiated cells are differentiated cells which revert to undifferentiated state to take over the function of division
I and II
II and III
I, II and III
II, III and IV
If a plant exhibits minimal changes in its physical characteristics despite significant changes in nutrient levels in the soil, it can be said to have low:
Plasticity
Adaptability
Resilience
Tolerance
During oogenesis in mammals, polar bodies are formed. Which statement best describes the function of polar bodies?
To provide nutrients to the developing oocyte.
To allow for the reduction of chromosome number while retaining most of the cytoplasm in the oocyte.
To initiate the process of fertilization.
To guide the sperm towards the oocyte.
The transformation of a larva into an adult through drastic changes is called:
Moulting
Metamorphosis
Regeneration
Growth
I. Plasmatic growth
II. Differentiation
III. Maturation
IV. Senescence
Identify the correct sequence of the following events occurring in plants and choose the correct option accordingly
I → II → III → IV
I → II → IV → III
IV → III → II → I
IV → I → II → III
Phellem is formed by phellogen through
Differentiation
Dedifferentiation
Redifferentiation
Plasticity
When transition from juvenile to adult is gradual than this type of development is called
Homoblastic development
Heteroblastic development
Homoheteroblastic development
Hetero and homoblastic development
During human embryonic development, the formation of the primitive streak marks a crucial step. Which of the following statements regarding the primitive streak is INCORRECT?
It marks the beginning of gastrulation.
It defines the embryo's axes.
It is the source of mesoderm and endoderm.
It persists throughout development.
The cells proximal (just next away from the tip) to the meristematic zone represents the phase of
Division
Maturation
Elongation
Meristematic division
