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The Understanding Of Genetics (biology Only) (GCSE Biology)

The following is a GCSE Biology test covering 'The Understanding Of Genetics (biology Only)' from the broader topic Inheritance, Variation And Evolution. The test is geared towards the AQA exam board style syllabus.
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Which process produces new alleles that selection can act upon?
In humans, sex is determined by X and Y chromosomes. Which gamete from a father determines the genetic sex of the child?
What evidence from fossils most directly supports the theory of evolution by natural selection?
Which outcome is expected when natural selection acts on a population with heritable variation in beak size and the environment favours larger seeds?
What evidence from modern genetics most strongly supports common ancestry among related species?
Which observation would most strongly support the idea that two populations have become separate species?
Why might a harmful recessive allele persist in a population at low frequency?
Which process produces gametes with half the chromosome number and creates genetic variation by independent assortment and crossing over?
Which statement best describes homologous structures found in the limbs of different vertebrates?
Which of the following best describes genetic drift?
Polydactyly is caused by a dominant allele. Which offspring genotypes from parents with genotypes Dd and dd will have polydactyly?