Why do you think the zygote is dormant for sometime in a fertilized ovule?
Solution and Explanation
The zygote is formed by the fusion of male gamete with the nucleus of the egg cell. The zygote remains dormant for some time and waits for the endosperm to form, which develops from the primary endosperm cell resulting from triple fusion. The endosperm provides food for the growing embryo and after the and after the endosperm, further development of the embryo from the zygote starts.
Top Questions on sexual reproduction in flowering plants
- What is Megasporogenesis? Describe the development of a female gametophyte.
- HBSE Class 12 - 2026
- Biology
- sexual reproduction in flowering plants
- Define Double Fertilization and explain its significance in flowering plants.
- HBSE Class 12 - 2026
- Biology
- sexual reproduction in flowering plants
- Which of the following is a mode of asexual reproduction in flowering plants?
- JKBOSE XII - 2026
- Biology
- sexual reproduction in flowering plants
- What is the function of the Tapetum in the Microsporangium?
- RBSE Class XII Exam - 2026
- Biology
- sexual reproduction in flowering plants
- Define Parthenocarpy and give one example of a fruit that develops this way.
- RBSE Class XII Exam - 2026
- Biology
- sexual reproduction in flowering plants
Questions Asked in CBSE CLASS XII exam
In an economy, the currency held by the public, Net Demand Deposits with Commercial Banks and Net Time Deposits with Commercial Banks stand at ₹ 1,42,000 crore, ₹ 22,000 crore and ₹ 86,000 crore respectively. The value of Money Supply (M1) would be ₹ _______ crore.
- CBSE CLASS XII - 2026
- Money and Banking
In an economy, when __________ is insufficient to achieve the level of output corresponding to the full employment, the difference is termed a deflationary gap.
- CBSE CLASS XII - 2026
- Income and Expenditure Account
In an economy, exclusion of _______ may lead to under estimation of the value of Gross Domestic Product (GDP).
- CBSE CLASS XII - 2026
- National Income Accounting
“In the Indian Banking System, the Statutory Liquidity Ratio (SLR) plays a vital role in controlling the credit creation capacity of the Commercial Banks, as it _______”
- CBSE CLASS XII - 2026
- National Income Accounting
In a two sector economy, the flow of factor payments moves from ________ to _________.
- CBSE CLASS XII - 2026
- Foreign exchange market
Concepts Used:
Pollination and Double Fertilization
Pollination is defined as the pre-fertilization event or process, where pollen grains from another are transferred to the stigma of a flower.
Double fertilization is a complex process that involves the fusion of one female gametophyte with two male gametes.
Types of Pollination:
All plants having flowers completely rely on the pollination method for reproduction. There are 2 types of pollination –
- Self Pollination
- Cross-Pollination
The end products of double fertilization are:
- Diploid Zygote
- Primary Endosperm Nucleus