Inheritance (AQA GCSE Biology): Quizzes
📚Quizzes
Practise the questions
14 questions from this quiz
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Practise the questions
14 questions from this quiz
What causes characteristics to pass from parents to children?
What causes characteristics to pass from parents to children?
Genes
What does the term 'polydactyly' mean?
What does the term 'polydactyly' mean?
Having extra fingers or toes
What type of allele causes polydactyly?
What type of allele causes polydactyly?
Dominant
How many copies of a dominant allele are needed for the trait to appear?
How many copies of a dominant allele are needed for the trait to appear?
One copy
If one parent has polydactyly, what is the chance each child will have extra digits?
If one parent has polydactyly, what is the chance each child will have extra digits?
50%
If both parents have polydactyly, what will happen to their children?
If both parents have polydactyly, what will happen to their children?
All will have the condition
What type of allele causes cystic fibrosis?
What type of allele causes cystic fibrosis?
Recessive
How many copies of a recessive allele are needed to have cystic fibrosis?
How many copies of a recessive allele are needed to have cystic fibrosis?
Two copies
If both parents are CF carriers, what is the chance their child will have cystic fibrosis?
If both parents are CF carriers, what is the chance their child will have cystic fibrosis?
25%
What is a carrier?
What is a carrier?
Has one faulty allele, no symptoms
What sex chromosomes do females have?
What sex chromosomes do females have?
XX
Which parent determines the biological sex of a child?
Which parent determines the biological sex of a child?
Father
What is the probability of having a boy in each pregnancy?
What is the probability of having a boy in each pregnancy?
50%
What are Punnett squares used for?
What are Punnett squares used for?
Predict inheritance patterns