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Question 19M.1.HL.TZ1.11

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1.HL.TZ1.11
Level HL Paper 1 Time zone TZ1
Command term Identify Question number 11 Adapted from N/A
11.
[Maximum mark: 1]
19M.1.HL.TZ1.11

What technique was used by John Cairns to measure the length of the DNA molecule in Escherichia coli?

A. Autoradiography

B. Chromatography

C. Genome sequencing

D. Karyotyping

[1]

Markscheme

A

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