The pollen tube usually enters the embryo sac
- through one of the synergids
- by directly penetrating the egg
- between one synergid and central cell
- by knocking off the antipodal cells
The Correct Option is A
Solution and Explanation
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
Questions Asked in AIIMS exam
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : 02 is liberated in the non-cyclic photophosphorylation.
Reason (R) : Liberation of oxygen is due to photolysis of water.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- Photosynthesis in higher plants
- Match the following column I with column II.
- AIIMS - 2019
- cloning
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : The Cro-Magnon man was the direct ancestor of the living modern man.
Reason (R) : Cro-Magnon man had slightly prognathous face.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- evolution
- Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion: Orbit of a satellite is within the gravitational field of earth whereas escaping is beyond the gravitational field of earth.
Reason: Orbital velocity of a satellite is greater than its escape velocity.
In the light of the above statements, choose the correct answer from the options given below- AIIMS - 2019
- Gravitation
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : In eukaryotes, transcription occurs in nucleus.
Reason (R) : In bacteria, transcription and translation occurs in cytoplasm.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- Transcription
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.