Measurement Topic 15 ~ Reproduction of Life
MiniSummative #2, Biology
Meiosis
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Directions: Complete the following statements with the best term/phrase from the word bank below.
Mitosis
Crossing Over
Meiosis
Diploid
46
Haploid
23
1. __Crossing over__________________When a piece of a chromosome breaks off and reattaches to a
different chromosome, thus increasing genetic variation.
2. __meiosis__________________Type of cell division where a cell splits twice and ends up with four cells
with half the number of chromosomes as the parent cell.
3. ___46_________________The number of chromosomes in human somatic cells.
4. ___haploid_________________Having one set of chromosomes (half the usual).
Directions: Select the best choice from the letters. Write your choice on the blank provided.
5. Which of the following describes the overall purpose of MITosis?
a. To produce gamete cells with twice the number of chromosomes as the parent cell
b. To produce gamete cells with one half the number of chromosomes as the parent cell
c. To produce somatic cells with the same number of chromosomes as the parent cell
d. To produce somatic cells with one half the number of chromosomes as the parent cell
6. Which of the following describes the overall purpose of MEIosis?
a. To produce germ cells with twice the number of chromosomes as the parent cell
b. To produce germ cells with one half the number of chromosomes as the parent cell
c. To produce somatic cells with the same number of chromosomes as the parent cell
d. To produce somatic cells with one half the number of chromosomes as the parent cell
7. Which of the following are ways that MEIosis differs from MITosis?
a. In meiosis, the chromosome number is reduced.
b. In meiosis, the daughter cells are genetically different from the parent cell.
c. In meiosis, the daughter cells differ genetically from each other.
d. All of the above
8. If a cell begins with 46 chromosomes, at the end of MEIosis, how many chromosomes will result in each of
the cells produced?
a. 23
b. 92
c. 46
d. 30
9. The Russian dwarf hamster, Phodopus sungorus, is native to the arid desert regions of Siberia, Mongolia,
and northern China. The sperm cell of the hamster contains 14 chromosomes. What is the total number of
chromosomes that would be contained in a normal, newly formed zygote of the species?
a. 7
b. 14
c. 28
d. 56
10. During meiosis, homologous chromosomes line up next to each other. In some cases one arm of a
chromatid (1/2 of a Xsome) crosses over the arm of the other half of the chromosome. What is the result
of this process?
a. The creation of an additional sex cell
b. Continuity in the offspring cell’s DNA
c. The independent assortment of genetic material
d. Additional variation in the DNA of each sex cell formed
11. Which of the following best describes the number of chromosomes in a normal human liver cell?
a. 23 original chromosomes and 23 duplicate chromosomes
b. 46 male chromosomes and 46 female chromosomes
c. 46 different chromosomes
d. 23 pairs of chromosomes
12. Many factors affect the survival of a given species. Why are the process of meiosis and fertilization
important for the survival of many species”
a. Both processes produce large amount of gametes
b. Bothe processes allow cloning of superior offspring
c. Both processes increase genetic variability of offspring
d. Both processes produce increasingly complex multicellular organisms