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Biological Databases (NCBI, Protein Data Bank) MCQs

Prepare for Biological Databases (NCBI, Protein Data Bank) MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

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Topic Notes: Biology

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Practice Biology MCQs to prepare for CSS, PMS, FPSC, PPSC, SPSC, KPPSC, BPSC, NTS, and university entry tests in Pakistan. This section covers key theoretical concepts, syllabus topics, and repeated past paper questions related to Biology.

Topic-Wise Breakdown
Structured subject modules organized by difficulty and exam frequency.
Verified Answer Keys
Detailed explanations cross-referenced with standard textbooks and commission keys.
Complete Coverage
Covers fundamental definitions, advanced problem-solving, and recent exam trends.

How to Prepare Biology MCQs for Competitive Exams

Review each sub-topic systematically. Start with fundamental concepts, practice multiple-choice question sets under timed conditions, and note down questions you missed in your revision tracker. Select a specific topic from the list below to begin practice.

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326961
The average weight of 8 men is increased by 1.5 kg when one of the men who weighs 65 kg is replaced by a new man. What is the weight of the new man?
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The average of 5 numbers is 27. If one number is excluded, the average becomes 25. What is the excluded number?
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The average of 8 numbers is 14. The average of 6 of these numbers is 16. What is the average of the remaining two numbers?
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The average of 20 numbers is 50. If 10 is subtracted from each number, what is the new average?
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The average of 10 numbers is 25. If 5 is added to each number, what is the new average?
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The average of 15 numbers is 40. If each number is multiplied by 3, what will be the new average?
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The average of four consecutive even numbers is 27. Find the largest of these numbers.
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The average of 7 consecutive odd numbers is 25. What is the smallest of these numbers?
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The average of 5 consecutive numbers is 20. What is the largest of these numbers?
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What is the average of the first 10 odd numbers?