Genetic Diagrams (Edexcel GCSE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is monohybrid inheritance?
What is monohybrid inheritance?
Inheritance from one trait
What does a monohybrid cross show?
What does a monohybrid cross show?
How recessive & dominant traits are inherited
In how many ways can outcomes of genetic crosses be expressed?
In how many ways can outcomes of genetic crosses be expressed?
Three ways
What is a pedigree?
What is a pedigree?
A diagram showing family genetic history
In a pedigree diagram, what do horizontal lines show?
In a pedigree diagram, what do horizontal lines show?
Link parents to each other
In a pedigree diagram, what do vertical lines show?
In a pedigree diagram, what do vertical lines show?
Link to children
How many people carry the cystic fibrosis allele?
How many people carry the cystic fibrosis allele?
1 in 30
What type of allele causes cystic fibrosis?
What type of allele causes cystic fibrosis?
A recessive allele
What is the chance a baby will have cystic fibrosis if both parents are carriers?
What is the chance a baby will have cystic fibrosis if both parents are carriers?
1 in 4 (25%)
What is the chance a baby will be a CF carrier if both parents are carriers?
What is the chance a baby will be a CF carrier if both parents are carriers?
1 in 2 (50%)