Page 146 - Science Course 3 (Book 1)

Mo4-L2: Lesson Review Quiz (Multiple Choice)

Direction: On the line before each question, write the letter of the correct answer.

1. What does homozygous mean?
A. The two genes in a hybrid are dominant.
B. The two alleles in a genotype are the same.
C. The two traits in a phenotype are different.

2. What is a gene?
A. a pair of chromosomes
B. a chemical that predicts heredity
C. a piece of a chromosome with code for one trait

Mo4-L2: Lesson Review Quiz (Matching)

Direction: On the line before each definition, write the letter of the term that matches it correctly.
Each term is used only once.

3. how a trait is expressed A. genotype

4. phenotype determined by multiple genes B. phenotype
5. contains genetic information that controls traits C. chromosome
6. two alleles that control the phenotype of a trait D. polygenic

7. model that predicts the possible genotypes and phenotypes of offspring inheritance
8. phenotype that is a blend of parents’ phenotypes E. codominance
9. phenotype showing traits of both alleles F. incomplete
10. genotypes of genetically related family members dominance
G. pedigree

H. Punnett square

Direction: Respond to each statement on the lines provided

11. Identify an example of a homozygous genotype and explain what that term means.

12. Compare and contrast a chromosome and a gene.

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