Genetics Chapter Test B Multiple Choice 1.

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Date
Class
Chapter Test B
Genetics
Multiple Choice
Directions: On the line before the question, write the letter of the correct answer.
1. Enrique has a red-flowering camellia plant and a white-flowering camellia
plant. The next spring, a pink-flowering camellia plant grows. What type
of interaction does the pink flowering plant show?
A. codominance
B. multiple alleles
C. polygenic inheritance
D. incomplete dominance
2. A dairy farm bred a true-breeding hairless cow with a true-breeding cow that
had hair. The offspring had hair. Which word best describes the hairless gene?
A. hybrid
B. recessive
C. dominant
D. homozygous
Matching
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Directions: On the line before each definition, write the letter of the term that matches it correctly. Not
all terms are used.
3. an organism’s genetic material
A. alleles
4. the passing of traits from parents to offspring
B. gene
5. occurs when multiple genes determine the
C. polygenic inheritence
phenotype of a trait
6. offspring of parents with different forms of the
same trait
7. section of a chromosome that has genetic
information for one trait
D. heredity
E. heterozygous
F. homozygous
G. hybrids
H. mutation
8. phenotypes of genetically related family members
I. pedigree
9. different forms of a gene
J. RNA
10. having two different alleles of a gene
K. DNA
11. having two of the same allele for a gene
12. nucleic acid used to make proteins
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Chapter Test B continued
Interpreting a Table
Directions: Use the tables to respond to each statement.
13. Write the correct symbols in each box to complete the Punnett square. Hint: Start by
placing the alleles of the parents (CC, cc) in their proper places at the top and left edges
of the table.
14. List the possible genotypes and phenotypes of the offspring predicted by the Punnett
square in question 13. Note the following: Dominant trait—Chin cleft (C); Recessive
trait—No chin cleft (c)
Genotype(s):
Phenotype(s):
15. Write the correct symbols in each box to complete the Punnett square. Parents are
16. List the genotype ratio and phenotype ratio of the offspring predicted by the Punnett
square in question 15. Note the following: Dominant trait—Dimples (D); Recessive
trait—No dimples (d)
Genotype ratio:
Phenotype ratio:
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Genetics
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Dd and Dd.
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Chapter Test B continued
Short Answer
Directions: Respond to each statement on the lines provided.
17. Relate RNA to translation and transcription.
18. Define incomplete dominance and codominance. Then give an example of each.
19. Determine two characteristics of Mendel’s experiments that helped him reach useful
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
conclusions.
20. Summarize Mendel’s two main conclusions about inherited traits.
Concept Application
Directions: Respond to the statement on the lines provided. Use complete sentences.
21. Relate mutations to traits.
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