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Selectable Markers Questions

Practice 2 Selectable Markers questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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Practice by Exam:BIOLOGY(1)Biology(1)

About selectable markers — practice questions, PYQs & concepts

selectable markers is a frequently-tested topic on BIOLOGY, Biology. ExamTest.live currently lists 2 selectable markers questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

selectable markers weight in competitive exams

Across our selectable markers question bank, the largest sources are BIOLOGY (1) and Biology (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 1 easy selectable markers questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Selectable Markers Questions(1–2 of 2)

Filter:
Q1easymcqBIOLOGYNEET 20192026
A selectable marker is used to:
Q2mediummcqBiologyNEET 20222026
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).Assertion (A): Polymerase chain reaction is used in DNA amplification.Reason (R): The ampicillin resistant gene is used as a selectable marker to check transformation.In the light of the above statements, choose the correct answer from the options given below:

Frequently Asked Questions

How many Selectable Markers questions are on ExamTest.live?▼
We have 2 Selectable Markers questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Selectable Markers MCQs free?▼
Yes. All Selectable Markers questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include Selectable Markers questions?▼
Selectable Markers questions are commonly asked in BIOLOGY, Biology. You can filter by exam using the links above.
How do I practice Selectable Markers questions effectively?▼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.