Chapter 11 Pre-Test
Name ________________________ 1 2 3 4 5 6 7
1) Cells produced by meiosis are called _________.
A. somatic cells
B. sister cells
C. autosomes
D. gametes
2) A certain type of diploid cell contains 58 chromosomes. How many chromosomes would you expect a gamete of
this organism to contain?
A. 58 chromosomes
B. 29 chromosomes
C. 116 chromosomes
D. 23 chromosomes
3) How are meiosis and mitosis similar?
A. Both are preceded by duplication of DNA.
B. Both always produce haploid daughter cells.
C. Both produce daughter cells with the exact same genetic makeup as the original parent cell.
D. Both occur in all living organisms.
4) During which type(s) of cell division do tetrads form and crossing over occur?
A. meiosis I and mitosis only
B. meiosis I only
C. meiosis II and mitosis only
D. meiosis II only
5) Which type of cell division is represented by this image?
A. mitosis
B. meiosis I
C. meiosis II
D. all of the above
6) At which stage during meiosis are sister chromatids separated into two different groups of chromosomes?
A. anaphase II
B. anaphase I
C. metaphase II
D. metaphase
E.
7) If a daughter cell contains six chromosomes at the end of meiosis I, how many chromosomes will each of the
daughter cells contain at the end of meiosis II?
A. 3
B. 12
C. 24
D. 6
8) Which of the following definitions for crossing over is accurate?
A. Genes on one sister chromatid of the paternal chromosome are traded for the same genes on the other
sister chromatid of the paternal chromosome.
B. Genes on chromosome 1 are traded for genes on chromosome 2.
C. Genes on the upper arm of one sister chromatid of chromosome 1 are traded for genes on the lower arm of
the other sister chromatid of chromosome 1.
D. Genes on the paternal chromosome are traded for the same genes on the maternal chromosome.
9) How do mitosis and meiosis differ from each other?
A. Mitosis produces gametes, whereas meiosis produces somatic cells.
B. The cells formed by mitosis are diploid, whereas the cells formed by meiosis are haploid.
C. Genetic diversity is generated in mitosis but not in meiosis.
D. Daughter cells produced in meiosis are identical to each other, whereas those made in mitosis are not.
10) A couple has had three children, and all of them are boys. When they get pregnant again for the fourth time,
they are hopeful that this one is a girl. What is the chance that this child will be a girl?
A. 1/2
B. 1/1 (a sure thing)
C. 1/4
D. 1/3
11) An allele on the Y chromosome controls the development of a rare genetic disease. A man with this rare disease
has three children. The first two are daughters without the disease. What is the probability that the third child, a
son, will have the disease?
A. 0%
B. 100%
C. 50%
D. 25%
12) Which of the following is the primary reason why polar bodies are produced in the cytokinesis process of egg
formation?
A. to reject chromosomes that have mutations on them by not allowing them to be placed into the egg
B. to make it easier for the cleavage furrow to divide up the cytoplasmic material
C. to reduce the number of chromosomes in half for each of the gametes
D. to preserve as much of the cytoplasmic nutrients and organelles as possible for the egg and any potential
zygotes
13) What is the genetic disadvantage of asexual reproduction?
A. All organisms are the same.
B. Through fertilization, a new combination of genes is formed.
C. There is never a new combination of genes.
D. New species can occur at a very fast rate.
14) What is decreased during the process of meiosis?
A. the number of chromatids
B. the size of chromosomes
C. the number of cells
D. the number of chromosomes
15) In meiosis, the chromosome number of each of the daughter cells will be _____________ the chromosome
number of the parent cell.
A. more than
B. exactly half as many as
C. exactly twice as many as
D. the same as
16) All genes have at least 2 alternate versions of themselves and they are called ____________.
A. sequences
B. variables
C. traits
D. alleles
17) Every organism has a genotype for each trait it has. How would you describe a genotype?
A. The alleles an organism has for specific traits.
B. The physical expression of its genes
C. The entire sequence of DNA
D. The enzyme which repairs DNA
18) Mendel used Punnett Squares to help him study pea genetics. How would you describe Punnett Squares?
A. Origami structures used to model DNA
B. Diagrams that show possible gene combinations from a genetic cross
C. Diagrams that show how DNA replicates
D. Geometric shapes that predict the occurrence of cancer
19) Mendel’s Law of Independent Assortment states that
A. Alleles for identical traits assort themselves based on base pairs
B. alleles for identical traits assort themselves based on size
C. alleles for different traits segregate independently of each other during meiosis
D. alleles for different traits segregate dependent on each other during meiosis
20) The phenotype of an organism is primarily determined by its genotype. Which of the following also helps
determine an organism’s phenotype?
A. Nutrition
B. Hydration
C. Oxygenation
D. Environment
21) Analyze what is happening during each of the following stages of Meiosis I and Meiosis II. Then correctly label
each stage. Use each stage in the word bank below only one time.
Prophase I
Prophase I
Metaphase I
Metaphase II
Anaphase I
Anaphase II
Telophase I
Telophase II