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1. An organism that contains a pair of the same alleles is:

• A) Monohybrid
• B) Dihybrid
• C) Homozygous
• D) Heterozygous
• E) Dioecious

 2. The "P" generation is:

• A) Composed entirely of purple offspring
• B) The seeds that are planted
• C) The primary focus of a reciprocal cross
• D) Identified based on phenotype
• E) The parents

 3. You form a hypothesis and design an experiment to test it. The resulting data are analyzed by Chi Square Analysis, and the value obtained is p=0.008. This means:

• A) The hypothesis is probably incorrect
• B) The hypothesis could be correct
• C) You do not have enough data points for accurate analysis
• D) The gene is unlikely to be expressed in the next generation
• E) The gene is likely to be expressed in the next generation

4. Mendel's law of segregation of alleles applies best to:

• A) Sex chromosomes
• B) Unlinked genes
• C) Linked genes
• D) Recessive genes
• E) Dominant genes

5. Which of these is NOT a reason that Mendel's pea plants served as an ideal model organism for study?

• A) They are easy to grow
• B) They cross-fertilize easily
• C) They self-fertilize easily
• D) They are usually haploid
• E) They mature quickly

6. How many chromosome pairs are present in the fruit fly, Drosophila melanogaster?

• A) 2
• B) 4
• C) 9
• D) 17
• E) 21

7. Mendel did an experiment in which pea plants true-breeding for white flowers were crossed with pea plants true-breeding for purple flowers. The offspring all have purple flowers. When the purple offspring self-pollinate, what result would you expect?

• A) All purple
• B) All white
• C) 1/2 purple, 1/2 white
• D) 1/4 purple, 3/4 white
• E) 1/4 white, 3/4 purple

8. The purple flowers produced in Mendel's experiment are an example of:

• A) Genotype
• B) Phenotype
• C) Codominance
• D) Recessive alleles
• E) Sex-linked inheritance

9. Which of these was an important influence on Gregor Mendel's work?

• A) Mathematical analysis
• B) The structure of DNA
• C) The structure of chromosomes
• D) The structure of genes
• E) The events of meiosis

10. Individuals with one pair of contrasting traits for a given character are mated; this is called a(n):

• A) Autosomal cross
• B) Heterozygous cross
• C) Reciprocal cross
• D) Monohybrid cross
• E) Test cross