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Sex-linked traits and punnett squares

Quiz by Benjamen Gonzalez

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20 questions
Show answers
  • Q1
    What is a sex-linked trait?
    A trait that is linked to a gene on the autosomal chromosomes
    A trait that is only present in females
    A trait that is linked to a gene on the sex chromosomes
    A trait that is only present in males
    30s
  • Q2
    Which of the following chromosomes determines the sex of a human?
    X and Y chromosomes
    X chromosome
    Y chromosome
    Autosome
    30s
  • Q3
    What is a Punnett square?
    A diagram used to predict the outcome of a genetic cross
    A square used to measure the frequency of a gene
    A square used to measure the probability of a trait
    A square used to measure the size of a chromosome
    30s
  • Q4
    In a Punnett square, what does a capital letter represent?
    A recessive allele
    A sex-linked gene
    An autosomal gene
    A dominant allele
    30s
  • Q5
    In a Punnett square, what does a lowercase letter represent?
    A sex-linked gene
    An autosomal gene
    A dominant allele
    A recessive allele
    30s
  • Q6
    What is the difference between X-linked and Y-linked traits?
    Both X-linked and Y-linked traits are equally common and can be inherited by both males and females.
    X-linked traits are more common and can be inherited by both males and females, while Y-linked traits are rare and can only be inherited by males.
    There is no difference between X-linked and Y-linked traits.
    Y-linked traits are more common and can be inherited by both males and females, while X-linked traits are rare and can only be inherited by males.
    30s
  • Q7
    What is hemophilia?
    A condition that causes color blindness in females.
    A condition that causes excessive hair growth in males.
    A neurological disorder caused by a mutation on the X chromosome.
    A bleeding disorder caused by a deficiency in clotting factor VIII or IX.
    30s
  • Q8
    Can females be carriers of X-linked disorders?
    Only males can be carriers of X-linked disorders.
    X-linked disorders only affect males.
    No, females cannot be carriers of X-linked disorders.
    Yes, females can be carriers of X-linked disorders.
    30s
  • Q9
    What is the chance of a female carrier passing on a disease-causing allele to her son?
    0%
    25%
    50%
    100%
    30s
  • Q10
    What is the chance of a female carrier passing on the disease-causing allele to her daughter?
    50%
    100%
    0%
    25%
    30s
  • Q11
    What is the phenotype of an organism?
    The physical appearance or traits of an organism.
    The age of an organism.
    The habitat in which an organism lives.
    The DNA sequence of an organism.
    30s
  • Q12
    What is a Punnett square used for?
    Determining the age of a population.
    Identifying the origin of a species.
    Predicting the probability of offspring inheriting certain traits from their parents.
    Measuring the size of gametes.
    30s
  • Q13
    What is the genotype of an organism?
    The age of an organism.
    The physical appearance or traits of an organism.
    The habitat in which an organism lives.
    The genetic makeup of an organism.
    30s
  • Q14
    What is a homozygous genotype?
    When an organism has two different alleles for a particular gene.
    When an organism has two of the same alleles for a particular gene.
    When an organism has no alleles for a particular gene.
    When an organism has only one allele for a particular gene.
    30s
  • Q15
    What is a heterozygous genotype?
    When an organism has two different alleles for a particular gene.
    When an organism has no alleles for a particular gene.
    When an organism has only one allele for a particular gene.
    When an organism has two of the same alleles for a particular gene.
    30s

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