# Hairs

Suppose the length of the hair is affected by only the α-keratin synthesis, which is the major component. This synthesis takes place in the epithelial cells of the hair bulb. The structure of α-keratin is made up of α-helix for the 3.6 amino acid residues in one revolution. Each turn increases the α-helix of 5.7 Å. During the synthesis of the α-keratin per second, on average, 30 formed peptide bonds.

A)

What is the rate of hair growth in mm in one day?

The result round to three decimal places [mm/day]

B)

How many days will clone hair length 4.9 cm when the initial length was 3.5 mm?

A)

What is the rate of hair growth in mm in one day?

The result round to three decimal places [mm/day]

B)

How many days will clone hair length 4.9 cm when the initial length was 3.5 mm?

## Correct answer:

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