Formative Practice 12.3 (Form 5 Biology Textbook Exercise and Answer)

Question 1:
State the differences between gene mutation and chromosomal mutation.

Gene mutation involves change in nucleotide base sequence in DNA molecule of a chromosome whereas chromosome mutation involves change in structure or number of chromosome.

Question 2:
Explain briefly the following statement by giving suitable examples:

Food can be a source of mutation.

Eating food which contains mutagen (example, preservative such as benzene) for a long period of time can cause mutation.

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