Question:
Double fertilization in angiosperms was discovered for the first time by
Double fertilization in angiosperms was discovered for the first time by
Updated On: Jun 21, 2022
- S.G. Nawaschin and Guignard
- Hofmeister, Coulter and Chamberlain
- Strasburger and Hofmeister
- Panchanan Maheshwari and B.G.L. Swamy.
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
In angiosperms, double fertilization which is a unique angiosperm feature (first discovered by Nawaschin in 1898 in Fritillaria and Lilium) occurs when one male gamete fuses with the egg cell to produce diploid zygote while the other male gamete fuses with diploid secondary nucleus (formed by fusion of two polar nuclei) to produce primary endosperm nuclei which produces endosperm. As endosperm results by fusion of a diploid nucleus and a haploid gamete hence it is a triploid structure.
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 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:
Sexual Reproduction in Flowering Plants
Sexual reproduction in flowering plants takes place or happens when the production of a new organism occurs from two parents by making use of their gametes or sex cells. Both sexual and asexual reproduction can be found in plants. Nearly all flowering plants reproduce sexually. Flowers play a captious role in the process as it carries both the male and female reproductive parts commonly known as androecium and gynoecium respectively.
An individual flower comprises the following parts -
- Pedicle
- Calyx
- Petals
- Sepals
- Stamen
- Pistil
- Receptacle