D3.2 Inheritance

D3.2 Inheritance Quiz

IB Biology SL: Quiz

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5 questions, one answer each

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1. Two carriers of PKU have a child. What is the probability the child has PKU?
- A. 0
- B. 1/4
- C. 1/2
- D. 3/4
2. A red-flowered four o'clock plant is crossed with a white-flowered one. The F1 are all pink. This shows:
- A. Codominance
- B. Incomplete dominance
- C. Sex linkage
- D. Phenotypic plasticity
3. Which is a discrete variable?
- A. Height
- B. Skin colour
- C. ABO blood group
- D. Body mass
4. A carrier woman ( $X^HX^h$ ) and an unaffected man have a son. The probability he has haemophilia is:
- A. 0
- B. 1/4
- C. 1/2
- D. 1
5. Q1 = 20 and Q3 = 30. Which value is an outlier?
- A. 6
- B. 10
- C. 40
- D. 46