DNA Copy Number Calculator

Calculate DNA copy number variations, gene dosage effects, and chromosomal abnormalities using qPCR analysis.

qPCR Data

(0.8-1.2)

Typical efficiency: 0.9-1.1

Or Calculate from Fold Change

fold

Results

Enter qPCR data to calculate copy number

DNA Copy Number Analysis

Copy Number Variations

  • • Deletion: Copy number < 2
  • • Normal: Copy number = 2
  • • Duplication: Copy number > 2
  • • Amplification: Copy number >> 2

qPCR Formulas

  • • ΔCt = Ct(target) - Ct(reference)
  • • ΔΔCt = ΔCt(sample) - ΔCt(control)
  • • Fold Change = 2^(-ΔΔCt)
  • • Copy Number = Fold Change × Expected