Effects of Mutations (HSC SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which characteristic applies to somatic mutations?
Which characteristic applies to somatic mutations?
Not inherited by offspring
Where do germline mutations occur?
Where do germline mutations occur?
In reproductive cells producing gametes
What percentage of the human genome codes for proteins?
What percentage of the human genome codes for proteins?
2%
What happens when DNA repair genes are mutated?
What happens when DNA repair genes are mutated?
Increased mutation rates throughout genome
Which function does non-coding DNA perform?
Which function does non-coding DNA perform?
Controls gene expression via promoters
When do somatic mutations have greater effects?
When do somatic mutations have greater effects?
If they occur early in development
What is non-disjunction?
What is non-disjunction?
Chromosomes fail to separate properly
What causes Down syndrome?
What causes Down syndrome?
An extra copy of chromosome 21
What are the three sources of genetic variation?
What are the three sources of genetic variation?
Mutation, meiosis, and fertilization
Why are female gametes particularly vulnerable to mutations?
Why are female gametes particularly vulnerable to mutations?
They remain in meiosis I for many years