Variation & Evolution (OCR GCSE Biology A, Combined (Gateway Science Suite)): 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 two factors determine an organism's phenotype?
What two factors determine an organism's phenotype?
Genotype and environment
What is genotype?
What is genotype?
The genes an organism inherited
How are genes passed from parents to offspring?
How are genes passed from parents to offspring?
In sex cells
What creates genetic variation in offspring?
What creates genetic variation in offspring?
Combining genes from mother and father
Which individuals have the same genotype?
Which individuals have the same genotype?
Identical twins only
Which is an example of environment affecting appearance?
Which is an example of environment affecting appearance?
Scars in animals
Which characteristic results from genetics AND environment?
Which characteristic results from genetics AND environment?
Weight
How is genetic variation introduced into DNA?
How is genetic variation introduced into DNA?
By mutations in DNA sequence
What effect do most mutations have on phenotype?
What effect do most mutations have on phenotype?
No effect
What happens to advantageous mutations?
What happens to advantageous mutations?
Natural selection makes them common quickly