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Biology

GCSE · AQA

QuestionsFlashcards

Communicable Diseases
Monoclonal Antibodies
- Producing Monoclonal Antibodies
  6
- Uses of Monoclonal Antibodies
  7
Plant Disease
- Detection and Identification of Plant Diseases
  6
- Plant Defence Responses
  6

Inherited Disorders Flashcards

All 6 cards in this deck

What is polydactyly and what type of allele causes it?: Having extra fingers or toes; it is caused by a dominant allele.
What is cystic fibrosis and what type of allele causes it?: A disorder of cell membranes; it is caused by a recessive allele.
What is a carrier of an inherited disorder?: A heterozygous person who has one recessive disorder allele but does not have the disorder, and can pass the allele to their children.
True or false? A child can only inherit polydactyly if both parents have polydactyly.: False. Polydactyly is caused by a dominant allele, so inheriting one copy from one parent is enough.
Give one argument in favour of embryo screening.: It stops people suffering from a genetic disorder (and treating disorders is expensive for the health service).
Give one argument against embryo screening.: It implies that people with genetic disorders are undesirable, and unwanted embryos are destroyed; it could also lead to people choosing other 'desirable' characteristics.