Question:
Release of second polar body from human egg nucleus occurs
Release of second polar body from human egg nucleus occurs
Updated On: Aug 15, 2022
- After the entry of sperm
- After fertilization
- Before sperm entry
- With no relation to sperm entry
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
During oogenesis, primary oocyte grows and produces a large secondary oocyte and a small polar body, both haploid. The secondary oocyte next proceeds with meiosis II, but the division gets arrested in metaphase II stage, due to accumulation of metaphase promoting factor (MPF). This is the second resting stage. It is in this stage of oocyte that the ovum is shed during ovulation. It passes into oviduct, where in the ampulla part, cell cycle will resume only after the entry of sperm forming a mature ovum and releasing 2nd polar body. In this way, meiosis Il is completed.
Was this answer helpful?
0
0
Top Questions on Fertilisation And Implantation
- The livestock "Semen "is stored at °C temperature for artificial insemination.
- CUET (UG) - 2023
- Biology
- Fertilisation And Implantation
- The process of preparation of the sperms for fertilization is known as:
- CUET (UG) - 2023
- Biology
- Fertilisation And Implantation
- Which of the following is NOT an indicator of soil fertility and productivity
- CUET (PG) - 2023
- Agroforestry
- Fertilisation And Implantation
- Given below are two statements:
Statement I: Desertification is the improvement of areas of deserts that have very little cultivation, so as to make the desert soil fertile.
Statement II: Improper land use practices, over grazing, abusive land use, factory pollution, urbanization, etc are factors that are responsible for climate change.
In the light of the above statements, choose the most appropriate answer from the options given below- CUET (PG) - 2023
- Agroforestry
- Fertilisation And Implantation
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: The response of plants to elevated concentrations of \(CO_2\) is known as carbon-dioxide fertilization effect.
Reason R: Under elevated concentrations of atmospheric \(CO_2\), plants are able to increase their rate of photosynthesis.
In the light of above statements, choose the correct answer from the options given below- CUET (PG) - 2023
- Agroforestry
- Fertilisation And Implantation
View More Questions
Questions Asked in COMEDK UGET exam
- A $2\,kg$ mass lying on a table is displaced in the horizontal direction through $50\,cm$. The work done by the normal reaction will be
- COMEDK UGET - 2015
- work, energy and power
- The numbers of $ {H^+}$ ions present in 1 mL of a solution whose pH is 13
- COMEDK UGET - 2015
- Equilibrium
- A mixture of methylamine and dimethylamine is given to you. The reagents used to separate the components of the mixture are
- $\cot^{-1} (21) + \cot^{-1} (13) + \cot^{-1} (-8) =$
- COMEDK UGET - 2015
- Inverse Trigonometric Functions
- Pick the incorrect statement among those given below.
- COMEDK UGET - 2015
- Chemical bonding and molecular structure
View More Questions
Concepts Used:
Fertilisation
Fertilization happens when a sperm fuses with the female act during sexual intercourse and further forms an egg that gets implanted in the uterus of the female. The sperm goes through the fallopian tube and penetrates the zona pellucida layer of the ovum (female egg) and then fuses with it which forms a zygote (fertilized egg). Thousand of sperms are generated in a male body to compensate for the ones unfit and non-motile ones. Once the zygote is created or formed, it gets implanted in the uterus and further growth starts taking place when cells start dividing and forming tissues, and tissues further form organs which result in the formation of an organ system, eventually or in time turning into an organism.