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Class 12 Biology: Biotechnology: Principles and Processes — Chapter Test 1

Class 12 • Biology • Biotechnology: Principles and Processes • Chapter Test

MediumFREE

15

Questions

20 min

Duration

15

Marks (1 each)

No

Negative marking

Original practice questions with full solutions by ExamPortal.

Instructions

  • • Read each question carefully and pick the correct answer.
  • • You can mark questions for review and come back to them.
  • • Answers are saved automatically.
  • • The test is submitted automatically when time runs out.

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This test is completely free.

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SYLLABUS & QUESTION BLUEPRINT

Sample Practice Questions

Preview 5 sample questions from this 15-question test. Test your knowledge below or take the full exam in timed CBT mode.

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Question 1 of 15
Restriction enzymes are also called:
A
molecular glue
B
molecular scissors
C
polymerases
D
ligases
View Correct Answer & Step-by-Step Solution
Correct Option:(B)molecular scissors

Detailed explanation is available inside the official test attempt review.

Question 2 of 15
The enzyme used to join DNA fragments is:
A
restriction endonuclease
B
DNA ligase
C
helicase
D
amylase
View Correct Answer & Step-by-Step Solution
Correct Option:(B)DNA ligase

Detailed explanation is available inside the official test attempt review.

Question 3 of 15
EcoRI is obtained from:
A
Bacillus
B
Escherichia coli
C
Agrobacterium
D
Streptomyces
View Correct Answer & Step-by-Step Solution
Correct Option:(B)Escherichia coli

Detailed explanation is available inside the official test attempt review.

Question 4 of 15
Palindromic sequences read the same on both strands when read in the:
A
same direction
B
5′ → 3′ direction on each strand
C
3′ → 5′ direction only
D
random direction
View Correct Answer & Step-by-Step Solution
Correct Option:(B)5′ → 3′ direction on each strand

Detailed explanation is available inside the official test attempt review.

Question 5 of 15
Gel electrophoresis separates DNA fragments on the basis of:
A
charge only
B
size
C
colour
D
sequence
View Correct Answer & Step-by-Step Solution
Correct Option:(B)size

Detailed explanation is available inside the official test attempt review.

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Frequently asked questions

How many questions are there in Class 12 Biology: Biotechnology: Principles and Processes — Chapter Test 1?

There are 15 questions to answer in 20 min. Each correct answer gives 1 mark, for a total of 15 marks.

Is there negative marking?

No. Wrong answers do not lose marks, so attempt every question.

Is this mock test free?

Yes, it is completely free. Just log in with your email to start.

What does this test cover?

It covers the chapter "Biotechnology: Principles and Processes" of Class 12 Biology. All questions are original, with a full solution for each.

Will I see my result and the solutions?

Yes. Right after you submit you get your score, accuracy, rank and percentile, and you can review every question with the correct answer and a step-by-step explanation.

Can I take this test again?

Yes, you can retake it as many times as you like and compare your scores.