Mutations (Edexcel GCSE Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is a mutation?
What is a mutation?
A change in a gene or chromosome
How do mutations occur?
How do mutations occur?
Randomly and continuously
Why did dark peppered moths increase during the Industrial Revolution?
Why did dark peppered moths increase during the Industrial Revolution?
Better camouflaged on soot-darkened bark
Which type of radiation can cause mutations?
Which type of radiation can cause mutations?
Gamma rays, X-rays, and UV rays
What is a substitution mutation?
What is a substitution mutation?
A base swapped for another in DNA
What effect do insertion and deletion mutations have?
What effect do insertion and deletion mutations have?
Shift the reading frame
What causes cancer?
What causes cancer?
Mutations leading to uncontrolled cell division
What is a silent mutation?
What is a silent mutation?
Base change coding for same amino acid
What is natural selection?
What is natural selection?
Better-adapted organisms survive and reproduce
Which chemical is a mutagen?
Which chemical is a mutagen?
Tar from cigarette smoke
Why do changes in amino acid sequence alter a protein?
Why do changes in amino acid sequence alter a protein?
Changes the shape of the protein
What are the three main effects mutations can have?
What are the three main effects mutations can have?
Minor/no effect, positive, or negative