Class 12 Botany simulations · Molecular Basis of Inheritance

DNA fingerprinting with VNTRs

Compare VNTR band patterns of a child with a mother and alleged fathers, or a crime-scene sample with suspects.

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What to notice

VNTR band patterns differ between individuals (except identical twins), so they identify people.

Key relation

Every band in a child comes from either the mother or the father

Try this

Which alleged father shares all the non-maternal bands with the child?

What you can change

• Case: choose Paternity test, Forensic match

More in Molecular Basis of Inheritance

• Transcription and translation
• DNA double helix
• The lac operon
• Semiconservative replication (Meselson–Stahl)

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