OCR Biology; Unit 5. Section 2: Inheritance (A2)

Across

• 1. What is the name given to a homologous pair of chromosomes? (8)
• 4. What is the name given to points where non - sister chromatids wrap around each other and join up (7)
• 5. Should the sample size be small or large for a Chi - squared (X^2) test? (5)
• 6. What does the O stand for in a Chi - squared (X^2) test? (8)
• 8. If the presence of a recessive allele prevents the expression of another this is what? (9, 9)