Inheritance (AQA GCSE Biology Combined Science): Flashcards
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10 cards from this deck
Inheritance
Inheritance
How characteristics pass from parents to offspring
Polydactyly
Polydactyly
Having extra fingers or toes
Polydactyly allele type
Polydactyly allele type
Dominant
Polydactyly chance if 1 parent has it
Polydactyly chance if 1 parent has it
50%
Cystic fibrosis allele type
Cystic fibrosis allele type
Recessive
Copies needed for cystic fibrosis
Copies needed for cystic fibrosis
Two copies of faulty gene
Carrier
Carrier
Person with 1 copy of recessive allele, no symptoms
Female sex chromosomes
Female sex chromosomes
XX
Male sex chromosomes
Male sex chromosomes
XY
Punnett squares
Punnett squares
Help work out chances of inheriting characteristics