D3.2 Inheritance

D3.2 Inheritance Quiz

IB Biology HL: Quiz

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5 questions, one answer each

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  1. 1. A person with genotype IBiI^Bi has blood group:

    • A. A
    • B. B
    • C. AB
    • D. O

  2. 2. HL: AaBb (unlinked) is crossed with aabb. What fraction of offspring are aabb?

    • A. 1/16
    • B. 1/8
    • C. 1/4
    • D. 1/2

  3. 3. HL: In a dihybrid F2 with four phenotype classes, the degrees of freedom are:

    • A. 1
    • B. 2
    • C. 3
    • D. 4

  4. 4. HL: A test cross gives 45% AB, 45% ab, 5% Ab and 5% aB offspring phenotypes. This suggests:

    • A. Unlinked genes
    • B. Linked genes with 10% recombination
    • C. Codominance
    • D. Sex linkage

  5. 5. HL: Which stage produces recombinants of linked genes?

    • A. Crossing over in prophase I
    • B. Replication in S phase
    • C. Cytokinesis
    • D. Fertilisation

Quiz