2024HSCShort answer

Q23

2 marks

Question

Outline how ONE type of electromagnetic radiation can cause a germline mutation.
Name of electromagnetic radiation: .................................

Try the question before revealing the answer.

Solution

Criteria	Marks
Outlines how a named type of electromagnetic radiation can cause a DNA mutation	2
Provides some relevant information	1

Sample answer:

X-rays are a type of electromagnetic radiation that damages the structure of DNA. If this damage occurs to the DNA in gametes (sex cells) then it is a germline mutation.

Supplied marking guidance · human reviewed

Compare this with your working, not only your final sentence.

Syllabus alignment

Module 6 · Genetic Change

MutationExplain how electromagnetic radiation, chemicals and naturally occurring mutagens operate.
MutationDistinguish somatic and germ-line mutations and their effects on organisms.

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