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Question 18N.3.SL.TZ0.10d

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Date November 2018 Marks available [Maximum mark: 2] Reference code 18N.3.SL.TZ0.10d
Level SL Paper 3 Time zone TZ0
Command term Describe Question number d Adapted from N/A
d.
[Maximum mark: 2]
18N.3.SL.TZ0.10d

A section of mRNA contains the start codon for translation of a polypeptide by the ribosomes.

(d)

Describe how bioinformatics can help identify genes within the DNA of an organism.

[2]

Markscheme

a. bioinformatics is the application of computer technology to biological information
OR
information is stored in a database
OR
bioinformatics is used in analyzing genomes ✔

b. allows for searches/comparisons/analysis of ORF/open reading frame ✔

c. the computer searches for a start codon and a stop codon «and within a distance of 60+ codons» ✔

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