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6. What does Homozygous mean?

  • Having two similar genes.
  • Having two identical alleles of a gene.
  • Having two different alleles of a gene.
  • Having four similar genes.

7. What is a locus?

  • The particular position on a genotype.
  • The particular position on a homologous gene
  • The particular position on a heterozygous gene.
  • The allele of an organism.

8. Can females have a sex linked disease?

  • No
  • Yes

9. What is a Phenotype?

  • A type of chromosome.
  • The combination of alleles of an organism.
  • A characterization of an organism.
  • A particular point on a chromosome for a gene.

10. What are the blood groups?

  • A, B, O, AB
  • A, B, C, AB
  • A, B, O, AB, AO, BO
  • A, B, AB

11. What is a carrier?

  • A person who carries a genotype.
  • A carrier is someone who carries the disease but doesn't exhibit symptoms of the disease
  • A person who carries a disease and exhibits symptoms.
  • A person who carries a phenotype.

12. What are codominant alleles?

  • Alleles that are different.
  • Alleles that are the same.
  • Pairs of alleles that both affect the phenotype when present in a heterozygote.
  • Pair of alleles that do not affect the phenotype when present in a heterosygote.

13. Which out of these four are sex linked?

  • Cystic Fibrosis
  • Hemophilia
  • AIDS