#gel electrophoresis

ZOOLOGY

Which of the following best describes gel electrophoresis?

Gel electrophoresis is used to separate DNA fragments based on size using an electric field. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Zoology section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Zoology portion (Latest NCERT Textbooks for Academic Session 2026-27 - Rationalized Edition for Class XI and XII), Topic: Structural organization, physiology, human health and related concepts as per latest syllabus.

View Details

ZOOLOGY

Which of the following statements about gel electrophoresis is incorrect?

DNA is negatively charged and moves toward the positive electrode (anode) in gel electrophoresis, not the negative electrode. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Principles of Inheritance, Molecular Basis of Inheritance and Biotechnology, Topic: Genetics, DNA techniques and applications.

View Details

ZOOLOGY

Which of the following statements about gel electrophoresis is incorrect?

Smaller DNA fragments migrate faster through the gel than larger fragments due to lower resistance. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Principles of Inheritance, Molecular Basis of Inheritance and Biotechnology, Topic: Genetics, DNA techniques and applications.

View Details

ZOOLOGY

Which of the following statements about gel electrophoresis is incorrect?

DNA is negatively charged and moves toward the positive electrode (anode) in gel electrophoresis. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Principles of Inheritance, Molecular Basis of Inheritance and Biotechnology, Topic: Genetics, DNA techniques and applications.

View Details

ZOOLOGY

Which of the following statements about gel electrophoresis is incorrect?

Gel electrophoresis requires a gel matrix (commonly agarose) to separate DNA fragments based on size. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Principles of Inheritance, Molecular Basis of Inheritance and Biotechnology, Topic: Genetics, DNA techniques and applications.

View Details

Medical Applications - Molecular Diagnosis - PCR ELISA

Which molecular tool is used to separate DNA fragments based on size?

Gel electrophoresis is used to separate DNA fragments based on size by applying an electric field.

Ref: NCERT Class 12 Biology Chapter 10: Biotechnology and its Applications Medical Applications - Molecular Diagnosis - PCR ELISA

View Details

Medical Applications - Molecular Diagnosis - PCR ELISA

Which molecular tool is used to separate DNA fragments based on size during genetic analysis?

Gel electrophoresis is used to separate DNA fragments based on size by applying an electric field.

Ref: NCERT Class 12 Biology Chapter 10: Biotechnology and its Applications Medical Applications - Molecular Diagnosis - PCR ELISA

View Details

Medical Applications - Molecular Diagnosis - PCR ELISA

Which technique is used to separate and visualize DNA fragments?

Gel electrophoresis is used to separate and visualize DNA fragments based on size.

Ref: NCERT Class 12 Biology Chapter 10: Biotechnology and its Applications Medical Applications - Molecular Diagnosis - PCR ELISA

View Details

Processes - Isolation of DNA and Gel Electrophoresis

Which of the following best describes gel electrophoresis?

Gel electrophoresis is used to separate DNA fragments based on size using an electric field.

Ref: NCERT Class 12 Biology Chapter 9: Biotechnology: Principles and Processes Processes - Isolation of DNA and Gel Electrophoresis

View Details

Processes - Isolation of DNA and Gel Electrophoresis

Which of the following techniques is used to separate DNA fragments?

Gel electrophoresis separates DNA fragments based on their size using an electric field.

Ref: NCERT Class 12 Biology Chapter 9: Biotechnology: Principles and Processes Processes - Isolation of DNA and Gel Electrophoresis

View Details

Processes - Isolation of DNA and Gel Electrophoresis

Which of the following statements about gel electrophoresis is correct?

Smaller DNA fragments migrate faster through the gel than larger fragments due to their lower resistance.

Ref: NCERT Class 12 Biology Chapter 9: Biotechnology: Principles and Processes Processes - Isolation of DNA and Gel Electrophoresis

View Details

Processes - Isolation of DNA and Gel Electrophoresis

Which of the following techniques is used to separate DNA fragments after restriction digestion?

Gel electrophoresis separates DNA fragments based on size, allowing for further analysis or cloning.

Ref: NCERT Class 12 Biology Chapter 9: Biotechnology: Principles and Processes Processes - Isolation of DNA and Gel Electrophoresis

View Details