Static GK decides most of the General Awareness score in SSC exams. The CGL, CHSL and CPO notices describe it in almost the same words: questions on India and its neighbouring countries in History, Culture, Geography, the Economic Scene, General Policy and Scientific Research, and on everyday observation in its scientific aspect. The GD notice adds Sports, General Polity and the Indian Constitution, and the MTS notice lists Social Studies, General Science and Environmental Studies up to the 10th Standard. This page brings together GK24's GK notes and practice questions tagged for all five SSC exams. The notes follow a subject-wise syllabus, one topic per note in English and Hindi: Indian Polity, Indian History, Geography, Indian Economy, General Science, Environment and Ecology, Art and Culture, Computer, Sports, Awards and Honours, Books and Authors, Days and Dates, and Static GK. Each note is written as short facts and tables so that a topic can be revised in one sitting, and each ends with multiple-choice questions and explanations. The level is what changes between exams: read MTS and GD topics at Class 10 depth, CHSL at Class 12 depth, and CGL and CPO at graduate depth, where questions ask for the article number or the year rather than the broad idea. Start with Polity, History and Geography, which fill the most questions in past papers in GK24's reading, then move to the Economy and Science. After each note, solve its questions here and your exam's previous-year questions on its own page.
Which of the following canals is a lock canal?
It crosses the isthmus of Central America, where the land rises well above sea level, so ships cannot simply be floated through.
Read the full explanation →The Suez Canal connects which two water bodies?
The Suez Canal was cut across the Isthmus of Suez in Egypt and opened in 1869.
Read the full explanation →The eastern terminus of the Trans-Siberian Railway is
The line begins in European Russia and runs eastward across the whole of Siberia, and Vladivostok is both its terminus and the principal Russian naval and commercial port on the Pacific.
Read the full explanation →Which is the longest railway line in the world?
It runs across Russia from St Petersburg and Moscow in the west to Vladivostok on the Pacific coast, a distance of about 9,289 km from Moscow, and no other single railway line in the world is as long.
Read the full explanation →The southernmost port in India is located in the state of:
The southernmost of India's major ports is V. O. Chidambaranar Port, long known as Tuticorin, which lies on the Gulf of Mannar in the Thoothukudi district of Tamil Nadu.
Read the full explanation →Which of the following is the main reason why meiosis is important for sexually reproducing organisms?
If gametes carried the full chromosome number, fertilisation would double it in every generation. Meiosis halves the number when gametes are formed, so that the union of two gametes restores the original diploid number and keeps it constant from one generation to the next.
Read the full explanation →The term mitosis was coined by
His detailed drawings of the stages are the basis of the account still given in textbooks.
Read the full explanation →Which of the following is the longest phase of the cell cycle?
Interphase occupies more than ninety-five per cent of the duration of the cell cycle, because in it the cell must grow to a sufficient size, synthesise proteins and RNA, duplicate its entire DNA and prepare the structures needed for division.
Read the full explanation →In anaphase I of meiosis, unlike in the anaphase of mitosis,
This single difference is the reason meiosis I is called the reduction division. In anaphase I the two homologous chromosomes of each bivalent are pulled to opposite poles, but each of them still consists of two sister chromatids joined at an undivided centromere.
Read the full explanation →The pairing of homologous chromosomes during prophase I is called
In the zygotene sub-stage of prophase I the two members of each pair of homologous chromosomes come to lie side by side along their whole length, matching point for point, and the structure that forms between them and holds them together is called the synaptonemal complex.
Read the full explanation →Crossing over between homologous chromosomes takes place in which sub-stage of prophase I?
By this sub-stage the homologous chromosomes have already paired in zygotene and are held together as bivalents or tetrads, each made of four chromatids.
Read the full explanation →How many daughter cells are produced at the end of meiosis in one parent cell, and of what kind?
Meiosis begins with a single round of DNA replication and is then followed by two successive nuclear divisions. Meiosis I is the reduction division, in which homologous chromosomes separate and the two cells formed already carry half the parental chromosome number.
Read the full explanation →Cytokinesis in a plant cell differs from that in an animal cell because
An animal cell divides its cytoplasm by a cleavage furrow, in which the plasma membrane is pulled inward around the middle until the cell is pinched into two.
Read the full explanation →The splitting of the centromere and the movement of sister chromatids to opposite poles occurs in
Once the chromosomes are aligned on the metaphase plate and every kinetochore is attached to a spindle fibre, the centromere holding the two sister chromatids together splits.
Read the full explanation →At which stage of mitosis do the chromosomes line up at the equator of the cell?
In this stage the condensed chromosomes, each consisting of two sister chromatids, are moved by the spindle fibres until their centromeres lie in one plane across the middle of the cell, known as the metaphase plate or equatorial plate.
Read the full explanation →Mitosis is called the equational division because
In mitosis each centromere splits in anaphase and one chromatid of every chromosome goes to each pole, so the two daughter cells receive exactly the same number of chromosomes as the parent cell had, and exactly the same genetic information.
Read the full explanation →In which phase of the cell cycle does DNA replication take place?
During this phase the DNA of the cell is copied so that the amount of DNA in the nucleus doubles, while the number of chromosomes remains unchanged because each chromosome now simply consists of two identical sister chromatids joined at the centromere.
Read the full explanation →Which group of temples in Jodhpur district, dating from the eighth to the twelfth century and including the Sachiya Mata and Mahavira temples, is called the Khajuraho of Rajasthan?
Osian, about sixty kilometres north of Jodhpur, has a group of more than a dozen Brahmanical and Jain temples built in sandstone between the eighth and the twelfth century, among them the Sachiya Mata temple and the Mahavira temple, and the richness of its sculpture has earned it the name…
Read the full explanation →The Hawa Mahal at Jaipur was built in 1799 by which ruler?
The Hawa Mahal, the five-storeyed screen of pink sandstone on the edge of the City Palace, was built in 1799 for Sawai Pratap Singh to a design by Lal Chand Ustad, and its many latticed windows let the women of the household watch the processions in the street without being…
Read the full explanation →Patwon ki Haveli, the largest and most ornate of the merchant mansions of Rajasthan, begun in 1805, is in which city?
The Patwon ki Haveli is a cluster of five mansions in the yellow sandstone of Jaisalmer, begun in 1805 by the Jain banker Guman Chand Patwa for his sons, and famous for its carved balconies and jali screens; the Salim Singh ki Haveli and the Nathmal ji ki Haveli stand…
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