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Question
Biology
Posted 5 months ago
Name the type of damage that would occur to human DNA following exposure to Ionising radiation
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Answer from Sia
Posted 5 months ago
Answer
Types of damage to human DNA from ionising radiation include single-strand breaks, double-strand breaks, base damage, and cross-linking.
Solution
a
Single-strand breaks (SSBs): Ionising radiation can cause breaks in one of the two strands of the DNA helix
b
Double-strand breaks (DSBs): More severe than SSBs, DSBs involve breaks in both strands of DNA, which can lead to chromosomal aberrations if not repaired correctly
c
Base damage: Ionising radiation can alter the structure of the nucleotide bases in the DNA, potentially leading to mutations during replication
d
Cross-linking: Radiation can cause the DNA strands or DNA-protein complexes to become covalently linked, interfering with replication and transcription
Key Concept
DNA damage from ionising radiation
Explanation
Ionising radiation can cause various types of DNA damage, which can compromise genomic integrity and lead to mutations if not properly repaired.

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