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Inheritance

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Chromosomes, genes and proteins

Subtopic

Chromosomes, genes and proteins under Inheritance for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following describes the 'genome' of an organism?

    A.

    The physical appearance of the organism

    B.

    The entire genetic material of that organism

    C.

    A single pair of alleles

    D.

    The protein structure of a cell

  2. 2.

    If a recessive allele is represented by 'a', what is the genotype of an individual showing the recessive phenotype?

    A.

    AAAA

    B.

    AaAa

    C.

    aaaa

    D.

    AA

  3. 3.

    How many strands make up a single DNADNA molecule?

    A.

    1

    B.

    2

    C.

    3

    D.

    4

Download the worksheet for Inheritance - Chromosomes, genes and proteins to practice offline. It includes additional chapter-level practice questions.

Mitosis and Meiosis

Subtopic

Mitosis and Meiosis under Inheritance for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of these is the correct order of events in sexual reproduction?

    A.

    Fertilization -> Meiosis -> Zygote

    B.

    Meiosis -> Fertilization -> Zygote

    C.

    Zygote -> Meiosis -> Fertilization

    D.

    Mitosis -> Fertilization -> Meiosis

  2. 2.

    In which of the following is mitosis NOT involved?

    A.

    Growth of a human fetus

    B.

    Repair of a broken bone

    C.

    Production of antibodies by white blood cells

    D.

    Production of sperm in the testes

  3. 3.

    How many chromosomes are in a human sperm cell?

    A.

    46

    B.

    23

    C.

    22

    D.

    44

Download the worksheet for Inheritance - Mitosis and Meiosis to practice offline. It includes additional chapter-level practice questions.

Monohybrid inheritance

Subtopic

Monohybrid inheritance under Inheritance for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    In a cross between AaAa and aaaa, what is the probability of the offspring being homozygous recessive?

    A.

    0.250.25

    B.

    0.500.50

    C.

    0.750.75

    D.

    1.001.00

  2. 2.

    What is the genetic term for an organism that has two non-identical alleles for a gene?

    A.

    Homozygous

    B.

    Heterozygous

    C.

    Pure-breeding

    D.

    Monohybrid

  3. 3.

    If two parents both have the genotype bbbb, what percentage of their offspring will have the genotype bbbb?

    A.

    0%0\%

    B.

    25%25\%

    C.

    50%50\%

    D.

    100%100\%

Download the worksheet for Inheritance - Monohybrid inheritance to practice offline. It includes additional chapter-level practice questions.

Inheritance - IGCSE Grade 11 Biology Notes & Revision | Krit.club