Question:
In grasses what happens in micro spore mother cell for the formation of mature pollen grains
In grasses what happens in micro spore mother cell for the formation of mature pollen grains
Updated On: Jun 23, 2024
- One meiotic and two mitotic divisions
- One meiotic & one mitotic divisions
- One meiotic division
- One mitotic division
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
In grasses, the formation of mature pollen grains from a microspore mother cell involves: (A) One meiotic and two mitotic divisions.
During this process, meiosis occurs first to reduce the chromosome number, followed by two mitotic divisions to produce a multicellular structure called a mature pollen grain, which contains two cells - a vegetative cell and a generative cell. This generative cell is essential for fertilization in plants.
Was this answer helpful?
0
0
Top Questions on sexual reproduction in flowering plants
- Primary Endosperm Nucleus is the product of:
- CUET (UG) - 2024
- Biology
- sexual reproduction in flowering plants
- What is the function of tassels in the corn cob?
- NEET (UG) - 2023
- Biology
- sexual reproduction in flowering plants
- In artificial hybridisation bagging is done to
- CUET (UG) - 2023
- Biology
- sexual reproduction in flowering plants
- After fertilization which hormone helps ovary to become fruit?
- MHT CET - 2023
- Biology
- sexual reproduction in flowering plants
- The collection of Male Reproductive Part of a flower is called :
- CUET (UG) - 2023
- Biology
- sexual reproduction in flowering plants
View More Questions
Questions Asked in NEET exam
- In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m-2)yr-1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
- NEET (UG) - 2024
- Ecosystems
- These are regarded as major causes of biodiversity loss:
A. Over exploitation
B. Co-extinction
C. Mutation
D. Habitat loss and fragmentation
E. Migration
Choose the correct opisdn:- NEET (UG) - 2024
- loss of biodiversity
- Match List I with List II:Choose the correct answer from the options given below:
List I List II A Robert May I Species-Area relationship B Alexander von Humboldt II Long term ecosystem experiment using out door plots C Paul Ehrlich III Global species diversity at about 7 million D David Tilman IV Rivet popper hypothesis - NEET (UG) - 2024
- Species diversity
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector \(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
- Magnetic Field
- Given below are two statements:
Statement I: Mitochondria and chloroplasts both double membranes bound organelles.
Statement II: Inner membrane of mitochondria is relatively less permeable, as compared chloroplast. I
In the light of the above statements, choose the mis appropriate answer from the options given below- NEET (UG) - 2024
- Cell structure and organelles
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.