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.
Related Questions
Unlike the formation of vascular tissues from procambium, the development of interfascicular cambium from parenchyma cells represents:
Redifferentiation
Dedifferentiation
Differentiation
Cell maturation
Which process is demonstrated by the formation of interfascicular cambium from fully differentiated parenchyma cells?
Differentiation
Redifferentiation
Cell elongation
Dedifferentiation
The process by which cells loose their specialisation is called
Dedifferentiation
Differentiation
Transdifferentiation
Apoptosis
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
Which one is the example of dedifferentiation?
Procambium and vascular cambium
Cork cambium and interfasicular cambium
Cork cambium and vascular cambium
Procambium and cork cambium
A scientist is culturing leaf mesophyll cells. The cells lose their specialized features and form an unorganized mass. This is NOT an example of:
Dedifferentiation
Callus formation
Cellular totipotency
Differentiation
In tissue culture experiments, leaf mesophyll cells are placed in a culture medium to form callus. This phenomenon is known as:
Redifferentiation
Dedifferentiation
Differentiation
Transdifferentiation
Which one is the example of dedifferentiation?
Procambium and vascular cambium
Cork cambium and interfasicular cambium
Cork cambium and vascular cambium
Procambium and cork cambium
In plant tissue culture, the formation of callus from explants, such as leaf mesophyll cells, is an example of:
Redifferentiation
Dedifferentiation
Totipotency
Pleiotropy
Which of the following processes occurs when leaf mesophyll cells in tissue culture revert to an undifferentiated callus?
Differentiation
Redifferentiation
Dedifferentiation
Organogenesis