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Name ______________________________ Class ___________________ Date __________________
HW#_____
Meiosis Review
Chapter 3 Section 3
Use complete sentences.
USING KEY TERMS
1. Use each of the following terms in the same sentence: meiosis and sex
chromosomes.
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In each of the following sentences, replace the incorrect term with the correct term
from the word bank.
pedigree
homologous chromosomes
meiosis
mitosis
2. During fertilization, chromosomes are copied, and then the nucleus divides
twice.
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3. A Punnett square is used to show how inherited traits move through a family.
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4. During meiosis, sex cells line up in the middle of the cell.
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UNDERSTANDING KEY IDEAS
_____ 5. Genes are found on
a. chromosomes.
b. proteins.
c. alleles.
d. sex cells.
6. If there are 14 chromosomes in pea plant cells, how many chromosomes are
present in a sex cell of a pea?
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Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
30
Heredity
Name ______________________________ Class ___________________ Date __________________
Section Review continued
7. Draw the eight steps of meiosis on a separate piece of paper and staple it to the
back of this page. Be sure to label each phase. (hint- use HO#19 to help)
INTERPRETING GRAPHICS
Use this pedigree to answer the question below.
8. Is this disorder sex linked? Explain your reasoning.
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CRITICAL THINKING
9. Identifying Relationships Put the following in order of smallest to largest:
chromosome, gene, and cell.
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10. Applying Concepts A pea plant has purple flowers. What alleles for flower
color could the sex cells carry?
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Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
31
Heredity