Question:
In the fully organised Polygonum type of embryo sac, what is the ratio of haploid, diploid and triploid nuclei?
In the fully organised Polygonum type of embryo sac, what is the ratio of haploid, diploid and triploid nuclei?
Updated On: Jul 28, 2022
- $ 3:1:3 $
- $ 6:0:1 $
- $ 6:1:0 $
- $ 3:2:3 $
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
A fully organised Polygonum type of embiyo sac is a 7-celled 8-nucleate structure. The cells of egg apparatus and antipodal cells are haploid whereas the central cell is diploid, ie, contains two polar nuclei. Triploid endosperm is formed after triple fusion, ie, fusion of second male gamete with polar nuclei.
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 Manipal exam
- Pressure inside two soap bubbles are 1.01 atm and 1.03 atm. Ratio between their volumes is
- Manipal - 2013
- Surface tension
- Which of the following is the pribnow box?
- Manipal - 2013
- Transcription
- Who has written the book Genera Plantarum?
- Manipal - 2013
- Nomenclature and taxonomy
- There is loss in weight when mixture of $ L{{i}_{2}}C{{O}_{3}} $ and $ N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O $ is heated strongly. This loss is due to
- Manipal - 2013
- anomalous behaviour of lithium
- The main function of clitellum is
- Manipal - 2013
- earthworm
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.