Use N:C Ratio when you need to compute the nucleus-to-cytoplasm ratio from nuclear and cytoplasmic cross-sectional areas. Enter Nucleus area and Cytoplasm area using the definitions and units below so the result can be reproduced.

Nucleus area

A finite measured or assumed value, expressed in µm².

Cytoplasm area

A finite measured or assumed value, expressed in µm².

The published tool contract uses this rule: Compute the nucleus-to-cytoplasm ratio from nuclear and cytoplasmic cross-sectional areas.

N:C ratio

The calculated n:c ratio.

A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small.

Retain the original Nucleus area and Cytoplasm area values and their units alongside the result. 260/230 Ratio is useful when you instead need to calculate the A260/A230 purity ratio used to detect organic compounds and salts carried over from extraction. 260/280 Ratio provides another view by helping you calculate the A260/A280 purity ratio used to assess nucleic acid contamination by protein.

• 260/230 Ratio

  Calculate the A260/A230 purity ratio used to detect organic compounds and salts carried over from extraction.

• 260/280 Ratio

  Calculate the A260/A280 purity ratio used to assess nucleic acid contamination by protein.

• APTT Ratio

  Compute the activated partial thromboplastin time ratio as the patient APTT divided by the control APTT.