All Free Everyday Science MCQs with Answers

1001. Alzheimer's disease is a _________ disorder.

• A. Genetic
• B. Brain
• C. Eye
• D. Body Weight Loss

Explanation: Alzheimer’s disease is a progressive brain disorder that damages memory and other cognitive functions. It is not simply a body-weight or eye disorder, although genetic factors can influence risk.

1002. 'Alba' was a genetically modified 'glowing' ___ created as an artistic work by contemporary artist Eduardo Kac.

• A. Sheep
• B. Dog
• C. Rabbit
• D. Mouse

Explanation: Alba was a genetically modified fluorescent rabbit created by artist Eduardo Kac as the artwork GFP Bunny. The glow resulted from insertion of a green fluorescent protein gene.

1003. Locked-in syndrome (LiS) is which type of disorder?

• A. Developmental
• B. Neurological
• C. Hormonic
• D. Genetic

Explanation: Locked-in syndrome is a neurological condition in which a person is conscious but almost completely paralysed, usually retaining eye movement or blinking. It is not primarily a hormonal or developmental disorder.

1004. Which animal has three hearts?

• A. Crow
• B. Dolphin
• C. Octopus
• D. None of these

Explanation: An octopus has three hearts: two pump blood to the gills and one pumps it to the rest of the body. Crow and dolphin do not have this three-heart arrangement.

1005. Amino acids are a product of the digestion of: ___________?

• A. Carbohydrates
• B. Fats
• C. Proteins
• D. Vitamins

Explanation: Digestive enzymes break proteins into amino acids, which can then be absorbed and used to build body proteins. Carbohydrates yield simple sugars, while fats yield fatty acids and glycerol.

1006. Stomach stores the ___________?

• A. enzime
• B. Food
• C. hcl
• D. None of These

Explanation: The stomach temporarily stores food and mixes it with gastric juice for digestion. Hydrochloric acid and enzymes are secreted into the stomach, but food is what it primarily stores.

1007. Who is the father of fingerprints?

• A. Sir Francis Galton's
• B. HM Smith
• C. Marcelo Malpighi
• D. Dr Nehemiah

Explanation: Sir Francis Galton established fingerprint classification and helped make fingerprints useful for personal identification, earning him the title “father of fingerprints.” Marcello Malpighi studied fingerprint patterns earlier but is not usually given this title.

1008. Which of the following is not a part of Darwinism?

• A. Over production
• B. Natural selection
• C. Inheritance for acquired characters
• D. Competition for survival
• E. None of these

Explanation: Darwin explained evolution through variation, overproduction, competition and natural selection, with advantageous traits passed to offspring. Inheritance of acquired characters belongs to Lamarck's theory, not Darwinism.

1009. Which is the largest organ in the human body?

• A. Liver
• B. Heart
• C. Skin
• D. Kidney

Explanation: Skin is the body's largest organ because it covers the entire external surface and performs protective, sensory, and temperature-regulating functions. The liver is the largest internal organ, which is the common distinction tested here.

1010. Pregnancy time period of "mice" is ___________?

• A. 2 weeks
• B. 2.5 weeks
• C. 3 weeks
• D. 4 weeks

Explanation: A mouse’s gestation lasts about 19 to 21 days, which is approximately three weeks. This is much shorter than the gestation period of larger mammals.