Question Discussion & Solution

The correct answer is In 1959.

• In 1959 the Rajasthan Zamindari and Biswedari Abolition Act passed.

Key Points

• Rajasthan Zamindari and Biswedari Abolition Act
  • This Act may be called the Rajasthan Zamindari and Biswedari Abolition Act, 1959.
  • It extends to the whole of the State of Rajasthan.
  • In this Act, unless the subject or context otherwise requires,-
    • "Biswedar" has the meaning assigned to it by clause (5) of Section 5 of the Rajasthan Tenancy Act, 1955 (Rajasthan Act 3 of 1955).
  • "estate" means land, or right, title or interest in land, held by a Biswedar or a Zamindar;
  • "settled" has the meaning assigned to it by clause (n) of Section 2 of the Rajasthan Land Reforms and Resumption of Jagirs Act, 1952 (Rajasthan Act 6 of 1952);
  • "Zamindar" has the meaning assigned to it by clause (46) of Section 5 of the Rajasthan Tenancy Act, 1955 (Rajasthan Act 3 of 1955) and includes a malik (landowner) in the Gang Canal area.

Additional Information

• Significance of the Rajasthan Zamindari and Biswedari Abolition Act
  • ​As soon as after the commencement of this Act, the State Government by notification in the Official Gazette ordered for the abolition and acquisition of Zamindari and Biswedari estates, or any class of such estates, in the State, or in any area thereof specified in the notification, and for their vesting in the State Government.

For alphabet: Increase by + 4

 D + 4 → H + 4 → L + 4 → P + 4 → T + 4 → X

For Number: Decrease number by - 4

23 – 4 → 19 – 4 → 15 – 4 → 11 – 4 → 7 – 4 → 3

The correct answer is Both 2 and 3.

Key Points

• Both mitochondria and chloroplasts  possess their own genetic material thus, they are called as semi-autonomous organelles.
• The mitochondrial DNA and plastid DNA possess genes which produce the proteins necessary for the functioning of mitochondria and chloroplasts  respectively.

• Mitochondria (sing.: mitochondrion), unless specifically stained, are not easily visible under the microscope.
• The number of mitochondria per cell is variable depending on the physiological activity of the cells.
• In terms of shape and size also, a considerable degree of variability is observed.
• Typically it is sausage-shaped or cylindrical having a diameter of 0.2-1.0µm (average 0.5µm) and length 1.0-4.1µm.
• Each mitochondrion is a double membrane-bound structure with the outer membrane and the inner membrane dividing its lumen distinctly into two aqueous compartments, i.e. the outer compartment and the inner compartment.

The correct answer is Bone-marrow.

Key Points

Red blood cell:

• Red blood cells (RBCs) are the most common type of blood cell and the vertebrate's principal means of delivering oxygen to the body tissues via blood flow through the circulatory system.
• RBC is formed in Bone Marrow.
• RBCs take up oxygen in the lungs, or in fish the gills, and release it into tissues while squeezing through the body's capillaries.
• The cytoplasm of erythrocytes is rich in hemoglobin, an iron-containing biomolecule that can bind oxygen and is responsible for the red color of the cells and the blood.
• Each human red blood cell contains approximately 270 million of these hemoglobin molecules.
• The cell membrane is composed of proteins and lipids, and this structure provides properties essential for physiological cell function such as deformability and stability while traversing the circulatory system and specifically the capillary network.

Additional Information

• Red blood cells are thus much more common than the other blood particles: there are about 4,000–11,000 white blood cells and about 150,000 - 400,000 platelets per microliter.
• Human red blood cells take on average 60 seconds to complete one cycle of circulation.
• The blood's red color is due to the spectral properties of the hemic iron ions in hemoglobin.
• Each hemoglobin molecule carries four heme groups; hemoglobin constitutes about a third of the total cell volume.
• The normal pH range of blood is between 7.35 to 7.45. This means that blood is naturally slightly alkaline or basic.