Variation in Phenotype (AQA A-Level Biology): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does the term 'phenotype' refer to?
What does the term 'phenotype' refer to?
Observable characteristics of an organism
What are alleles?
What are alleles?
Different versions of genes
What would happen to populations without mutations?
What would happen to populations without mutations?
Lack genetic diversity for adaptation
How does meiosis contribute to genetic variation?
How does meiosis contribute to genetic variation?
Produces genetically unique gametes
What effect does random fertilisation have on offspring?
What effect does random fertilisation have on offspring?
Creates unpredictable allele combinations
Which characteristic shows discontinuous variation?
Which characteristic shows discontinuous variation?
ABO blood group
Can environmental factors change an organism's genetic code?
Can environmental factors change an organism's genetic code?
No, only affect gene expression
What type of variation do human height and mass show?
What type of variation do human height and mass show?
Continuous variation
In a normal distribution curve, where do most individuals cluster?
In a normal distribution curve, where do most individuals cluster?
Around the average
What do most phenotypic variations result from?
What do most phenotypic variations result from?
Genetic & environmental interaction