Explanation

• Sterilization is the process of killing all forms of microorganisms, including bacteria, viruses, fungi, and spores.
• Ensures complete microbial safety of food, medical equipment, and laboratory materials.

Additional information:

• Different from pasteurization, which only kills most harmful microbes but not all spores.

Last verified on 03-02-2026

Explanation

• Cereals like wheat are fermented using yeast or sourdough to produce bread.
• Fermentation converts sugars into carbon dioxide and alcohol, causing dough to rise.
• Bread is a staple food made from fermented cereal flour.

Last verified on 03-02-2026

Explanation

• Gall is an abnormal growth or swelling on plants caused by insects, bacteria, fungi, or other external stimuli.
• Results from excessive cell division in specific tissues.
• Can appear on leaves, stems, roots, or flowers, affecting plant health.

Last verified on 03-02-2026

Explanation

• Oligopoly is a market with a few sellers offering similar but differentiated products.
• Sellers have significant influence over price and market conditions.
• Common in industries like automobiles, electronics, and telecom.

Last verified on 03-02-2026

Explanation

• The Government of Pakistan announced the minimum support price (MSP) for wheat crop 2021‑22 at Rs. 1950 per 40 kg.
• This price was set to encourage farmers to grow sufficient wheat and improve production.

Last verified on 03-02-2026

Explanation

• Productivity measures the average or real output produced per unit of input (like labor, land, or capital).
• Helps assess how efficiently resources are being used in production.
• Higher productivity indicates better resource utilization and economic performance..

Last verified on 03-02-2026

Explanation

• A trade surplus occurs when a country exports more goods than it imports.
• It indicates that a nation is earning more from exports than it is spending on imports.
• Trade surplus strengthens a country’s economy and foreign reserves.

Last verified on 01-02-2026

Explanation

• Taq polymerase is an enzyme extracted from the bacterium Thermus aquaticus.
• It is heat-stable, allowing DNA amplification at high temperatures in PCR (Polymerase Chain Reaction).
• Crucial for modern molecular biology and genetic research.

Last verified on 03-02-2026

Explanation

• Recombinant DNA is formed by combining DNA from two different sources.
• This technology allows insertion of a gene from one organism into another.
• Used in medicine, agriculture, and biotechnology for desired traits.

Last verified on 03-02-2026

Explanation

• Calcium is a non-moveable (immobile) nutrient in plants.
• Once deposited in older tissues, it cannot be easily relocated to new growth.
• Essential for cell wall structure, root development, and fruit quality.

Last verified on 03-02-2026