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
Which of the following is NOT a characteristic of the lag phase in a bacterial growth curve?
Intense metabolic activity
Rapid cell division
Adaptation to the environment
Increase in cell size
The process of formation of haploid spores from a diploid sporophyte is called:
Mitosis
Meiosis
Fertilization
Pollination
Double fertilization is a characteristic feature of:
Gymnosperms
Angiosperms
Pteridophytes
Bryophytes
The cells proximal (just next away from the tip) to the meristematic zone represents the phase of
Division
Maturation
Elongation
Meristematic division
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
The development of fruits without fertilization is called:
Polyembryony
Apomixis
Parthenocarpy
Parthenogenesis
The transformation of a larva into an adult through drastic changes is called:
Moulting
Metamorphosis
Regeneration
Growth
Differentiation in plants is open because
Cells/tissue arising out of meristem regain the capacity of division under certain conditions
Cells/tissue arising out of different meristem have different structures at maturity
Cells/tissue arising out of different meristem have same structures at maturity
All of the above
Which plant hormone promotes seed dormancy?
Gibberellin
Auxin
Cytokinin
Abscisic acid (ABA)
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
