Patterns of Inheritance (OCR A-Level Biology A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What does a monohybrid cross examine?
What does a monohybrid cross examine?
Inheritance of a single gene
How should codominant alleles be represented in genetic notation?
How should codominant alleles be represented in genetic notation?
Uppercase letter with superscripts
What phenotypic ratio appears in F₂ when two heterozygotes with complete dominance are crossed?
What phenotypic ratio appears in F₂ when two heterozygotes with complete dominance are crossed?
3:1
What is the key difference between incomplete dominance and codominance?
What is the key difference between incomplete dominance and codominance?
Incomplete blends; codominance shows both
What F₂ ratio indicates independent assortment in a dihybrid cross?
What F₂ ratio indicates independent assortment in a dihybrid cross?
9:3:3:1
What causes linked genes to show modified phenotypic ratios?
What causes linked genes to show modified phenotypic ratios?
They are on the same chromosome
Why do males express recessive X-linked traits more often than females?
Why do males express recessive X-linked traits more often than females?
Males are hemizygous for X-linked genes
In ABO blood groups, what is the relationship between I^A and I^B alleles?
In ABO blood groups, what is the relationship between I^A and I^B alleles?
Codominant to each other
What causes epistasis to modify expected phenotypic ratios?
What causes epistasis to modify expected phenotypic ratios?
Genes interact to influence one trait
What does it mean if calculated χ² < critical value at p=0.05?
What does it mean if calculated χ² < critical value at p=0.05?
Accept null hypothesis