Models of single-gene inheritance: family tree diagrams
Quiz by Oak National Academy: GCSE Biology AQA Foundation
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6 questions
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- Q1For a recessive genetic disorder, what does it mean when an individual is referred to as a “carrier”? It is someone who ...has the disorder, and can pass it on.hasn’t got the disorder and who can’t pass it on.has the disorder but only has mild symptoms.hasn’t got the disorder, but can pass it on.30s
- Q2Match the genotype to its correct description.Users link answersLinking30s
- Q3Here is a family tree. How many generations are shown?3412530s
- Q4Here is a family tree. Which individuals are brother and sister?5 and 63 and 410 and 118 and 91 and 230s
- Q5Here is a family tree. The shaded individuals have a genetic disorder caused by a recessive allele. Which two parents must be carriers?5 and 63 and 41 and 230s
- Q6Marfan syndrome is a genetic disorder caused by dominant allele M. A father is Mm. The mother is mm. Their 1st child has Marfan. What is the probability that a 2nd child will have Marfan.Users enter free textType an Answer30s
