LGS Mixed Practice Test #382

Question 1

DNA fingerprinting by:‌​‍

Accepted Answer

Alec Jeffreys — Alec Jeffreys (1984).‌​‍

Answer

Crick

Answer

Watson

Answer

Sanger

Question 2

Dronacharya Award is for:‌​‍

Accepted Answer

Best coach — Outstanding sports coaches.‌​‍

Answer

Best player

Answer

Lifetime achievement

Answer

Best referee

Question 3

The Treaty of Versailles (1919) ended:‌​‍

Accepted Answer

World War I — Treaty of Versailles imposed harsh reparations on Germany; seeds of WWII.‌​‍

Answer

World War II

Answer

Franco-Prussian War

Answer

Napoleonic Wars

Question 4

A teacher notices that a group of students frequently disrupts the class by talking over each other during group activities. Which intervention would be most appropriate to address this issue?

Accepted Answer

B. Implementing a 'talking stick' rule where only the student holding the stick can speak — The 'talking stick' rule (Option B) is a structured approach to manage turn-taking, ensuring all students have an equal opportunity to speak while reducing interruptions. Punitive measures like isolation (Option A) or reducing group activities (Option D) undermine collaborative learning, and ignoring the behavior (Option C) may normalize disruptions.

Answer

A. Assigning the disruptive students to work independently for the rest of the term

Answer

C. Ignoring the behavior as it will likely resolve itself over time

Answer

D. Reducing the frequency of group activities to minimize opportunities for disruption

Question 5

Purines in DNA:

Accepted Answer

A and G — Double-ring. Pyrimidines (single-ring): C, T (in DNA), U (in RNA). Chargaff's rule: A=T, G=C.

Answer

C and T

Answer

A and T

Answer

Only A

Question 6

Which of the following functional groups is characteristic of local anesthetics like lidocaine?

Accepted Answer

A. Amide group — Local anesthetics like lidocaine contain an amide group (-CONH-) as part of their structure, which is essential for their mechanism of action by blocking sodium channels. The other groups listed are not characteristic of local anesthetics.

Answer

B. Aldehyde group

Answer

C. Nitro group

Answer

D. Phenolic group

Question 7

A batch of a large volume parenteral (LVP) solution has been manufactured. Which test is crucial to perform to ensure the absence of fever-inducing substances that could cause adverse reactions in patients?

Accepted Answer

C. Pyrogen test — The pyrogen test is specifically designed to detect the presence of pyrogens, which are fever-inducing substances, primarily bacterial endotoxins, that can cause adverse reactions if administered parenterally. The sterility test checks for viable microorganisms, the particulate matter test for physical contaminants, and pH determination for chemical stability, none of which directly address pyrogens.

Answer

A. Sterility test

Answer

B. Particulate matter test

Answer

D. pH determination

Question 8

A teacher observes that a student excels in music, spatial reasoning, and interpersonal skills but struggles with logical-mathematical tasks. According to Gardner's Multiple Intelligences Theory, which of the following combinations of intelligences is most likely dominant in this student?

Accepted Answer

B. Musical, Spatial, and Interpersonal — The student's strengths in music (musical intelligence), spatial reasoning (spatial intelligence), and interpersonal skills (interpersonal intelligence) align with option B. The other options do not match the described strengths.

Answer

A. Linguistic, Naturalistic, and Bodily-Kinesthetic

Answer

C. Logical-Mathematical, Intrapersonal, and Existential

Answer

D. Musical, Naturalistic, and Intrapersonal

Question 9

C4 plants (e.g., maize, sugarcane) have an advantage in:‌​‍

Accepted Answer

Hot, dry conditions (reduces photorespiration) — C4 pathway (Hatch-Slack) concentrates CO₂ around RuBisCO → efficient in high temp/intense light.‌​‍

Answer

Cold climates

Answer

Low light

Answer

Deep water

Question 10

Chemical formula of salt (common):‌​‍

Accepted Answer

NaCl — NaCl — sodium chloride.‌​‍

Answer

MgCl₂

Answer

CaCl₂

Answer

KCl

LGS Mixed Practice Test #382