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GCSE BIOLOGY AQA Inheritance. EXAM REVISION QUESTIONS WITH VERIFIED SOLUTIONS LATEST 2025 UPDATE.

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GCSE BIOLOGY AQA Inheritance. EXAM REVISION QUESTIONS WITH VERIFIED SOLUTIONS LATEST 2025 UPDATE.

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GCSE BIOLOGY AQA Inheritance. EXAM REVISION QUESTIONS WITH
VERIFIED SOLUTIONS LATEST 2025 UPDATE.




Phenotype - ANSWER- The observable characteristics of an organism.



What factors affect an organisms phenotype? - ANSWER- Genes, the environment or a
combination of both


Gene - ANSWER- A section of a molecule of DNA that codes for a specific protein



Allele - ANSWER- An alternative form of a gene



Genotype - ANSWER- genetic makeup of an individual



Dominant allele - ANSWER- The characteristic that is expressed in the phenotype even if only
one of the alleles is inherited


Recessive allele - ANSWER- The characteristic that is expressed in the phenotype only if both
alleles are inherited


Heterozygous - ANSWER- The genotype where one of each alleles is present - dominant and
recessive


Homozygous - ANSWER- The genotype where both of the same alleles are present - could be
both dominant or both recessive


Genome - ANSWER- All the DNA in an organism

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