Which of the following extra-embryonic membranes in amniotes primarily functions in waste storage?
Chorion
Amnion
Yolk sac
Allantois
Related Questions
The transformation of a larva into an adult through drastic changes is called:
Moulting
Metamorphosis
Regeneration
Growth
The process of programmed cell death during development is called:
Necrosis
Mitosis
Meiosis
Apoptosis
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.
Double fertilization is a characteristic feature of:
Gymnosperms
Angiosperms
Pteridophytes
Bryophytes
Development includes (plants)
I. Differentiation
II. Redifferentiation
III. Dedifferentiation
Select the right combination from the given option
I and II
II and III
III and I
I, II and III
The development of interfascicular cambium from mature parenchyma cells between vascular bundles exemplifies:
Redifferentiation
Differentiation
Dedifferentiation
Plasticity
In plants, the conversion of permanent tissues like parenchyma to meristematic tissue like interfascicular cambium is an example of:
Redifferentiation
Differentiation
Dedifferentiation
Senescence
Which of the following cellular processes is responsible for the formation of interfascicular cambium from differentiated parenchyma cells in dicot stems?
Totipotency
Dedifferentiation
Redifferentiation
Differentiation
The process of formation of haploid spores from a diploid sporophyte is called:
Mitosis
Meiosis
Fertilization
Pollination
The process of organogenesis in vertebrate embryos is heavily influenced by epithelial-mesenchymal transitions (EMTs). Which of the following is NOT a characteristic feature of EMT during organogenesis?
Loss of cell adhesion molecules.
Increased cell motility.
Increased cell proliferation within the epithelium.
Degradation of the extracellular matrix.