Edexcel IGCSE Biology 3.37B mutation incidence

Practise mutation-incidence questions by naming mutagens and linking radiation exposure to abnormality counts in table data.

Exam points

State mutagens such as gamma rays, x-rays or ionising radiation as mutation causes.
Use table data to link longer radiation exposure with more abnormalities or mutations.

[Maximum number: 1]

The sequence of bases on one strand of a section of DNA is

TAC CGT AAT TAT

The table shows different mRNA codons for some amino acids.

State one way that the incidence of mutations can be increased.

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