KAS Prelims Mixed Practice Test #695

Question 1

A dominant allele:

Accepted Answer

Expresses its trait in a heterozygote — Dominant allele masks the recessive in heterozygotes (e.g., Aa shows A trait).

Answer

Always skips generations

Answer

Only expresses in homozygote

Answer

Never expresses

Question 2

Synonym of VIVACIOUS:‌​‍

Accepted Answer

Lively — Full of life.‌​‍

Answer

Bored

Answer

Dull

Answer

Slow

Question 3

During the process of external respiration, where does the primary exchange of oxygen and carbon dioxide occur in the human body?

Accepted Answer

C. Alveoli — The alveoli are tiny air sacs within the lungs, highly vascularized, and serve as the primary site for gas exchange between the inhaled air and the blood. Oxygen diffuses from the alveoli into the blood, while carbon dioxide diffuses from the blood into the alveoli to be exhaled. The trachea, bronchi, and larynx are part of the conducting airways that transport air but are not involved in gas exchange.

Answer

A. Trachea

Answer

B. Bronchi

Answer

D. Larynx

Question 4

Vitamin B1 (Thiamine) plays a crucial role as a coenzyme in several metabolic pathways. Which of the following enzymes typically requires Thiamine pyrophosphate (TPP) as a cofactor?

Accepted Answer

B. Pyruvate dehydrogenase complex — Thiamine pyrophosphate (TPP), derived from Vitamin B1, is an essential coenzyme for several enzymes involved in carbohydrate metabolism, particularly those catalyzing decarboxylation reactions. The pyruvate dehydrogenase complex, which converts pyruvate to acetyl-CoA, is a classic example that requires TPP. The other enzymes listed have different coenzyme requirements.

Answer

A. Lactate dehydrogenase

Answer

C. Glucose-6-phosphate dehydrogenase

Answer

D. Succinate dehydrogenase

Question 5

In which state is Sariska located?‌​‍

Accepted Answer

Rajasthan — Rajasthan.‌​‍

Answer

Haryana

Answer

UP

Answer

MP

Question 6

Capital of Japan:‌​‍

Accepted Answer

Tokyo — Tokyo. Currency = Yen.‌​‍

Answer

Osaka

Answer

Kyoto

Answer

Hiroshima

Question 7

A geographer is studying a region in the northern plains of India characterized by fine alluvial deposits, high fertility, a marshy and waterlogged environment, and a historical presence of dense forests. This region is typically found immediately south of the Bhabar belt. Which physiographic division does this description best fit?

Accepted Answer

B. The Terai belt — The description accurately defines the Terai belt. Located immediately south of the Bhabar belt, the Terai is known for its marshy, wet, and densely forested environment where streams that disappeared in the porous Bhabar region re-emerge. Bhangar plains are composed of older alluvium on higher ground and are generally drier. Khadar plains are newer floodplains, highly fertile but not typically as perennially marshy as the Terai. A Doab is simply the land between two confluent rivers, not a specific physiographic belt with these unique characteristics.

Answer

A. The Bhangar plain

Answer

C. The Khadar plain

Answer

D. The Doab region

Question 8

Bangalore airport:‌​‍

Accepted Answer

Both — Both names used.‌​‍

Answer

Kempegowda Intl

Answer

BIAL

Answer

HAL

Question 9

'All the world's a stage, and all the men and women merely players' is from Shakespeare's:

Accepted Answer

As You Like It — Jaques's 'Seven Ages of Man' speech in As You Like It, Act II, Scene VII.

Answer

Hamlet

Answer

Macbeth

Answer

The Tempest

Question 10

Which state in India celebrates 'Vidyasagar Jayanti' on September 26th as a tribute to Ishwar Chandra Vidyasagar, who contributed significantly to women's education and social reforms?

Accepted Answer

A. West Bengal — Vidyasagar Jayanti is celebrated on September 26th to commemorate the birth anniversary of Ishwar Chandra Vidyasagar, a prominent social reformer and educator known for his work in women's education and widow remarriage in West Bengal. The other states listed do not observe this day as an education-focused celebration.

Answer

B. Maharashtra

Answer

C. Tamil Nadu

Answer

D. Kerala

KAS Prelims Mixed Practice Test #695