Learning objective
Describe cystic fibrosis as an inherited disorder of cell membranes caused by a recessive allele.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Reproduction
Subtopic
Inherited disorders
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Quick explanation
Describe cystic fibrosis as an inherited disorder of cell membranes caused by a recessive allele
- This point belongs to Reproduction, especially Inherited disorders.
- You need to be able to describe cystic fibrosis as an inherited disorder of cell membranes caused by a recessive allele.
- The key ideas to know are recessive allele and cystic fibrosis.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Inherited disorders to exam-style questions, flashcards, and revision notes for Reproduction.
Quick student answer
How does cystic fibrosis work?
Direct answer
In Biology, this page helps you answer questions about cystic fibrosis within Reproduction. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are cystic fibrosis and recessive allele.
Key terms
- cystic fibrosis: An inherited disorder that affects the cell membranes, caused by a recessive allele.
- recessive allele: An allele that is expressed only when two copies are present and no dominant allele is present.
Common trap
Misunderstanding Cystic Fibrosis Inheritance: Remember that cystic fibrosis is expressed only when an individual has two copies of the recessive allele. Review the definitions of dominant and recessive alleles to clarify this concept.
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Revision notestopic notes
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Open revision notesRelated learning objectives
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Sexual and asexual reproduction
- Explain that sexual reproduction mixes genetic information and produces variation in offspring.
Sexual and asexual reproduction
- State that gamete formation in sexual reproduction involves meiosis.
Sexual and asexual reproduction
- Describe asexual reproduction as reproduction involving one parent, no gamete fusion and no mixing of genetic information.
Sexual and asexual reproduction