Download Genetics Test

Genetics Test
1. If a cell cannot move enough material
through its membrane to survive, then the
ratio of its surface area to volume is:
a. too large
b. just the right size
c. In the middle
d. too small
7. A distinguishing characteristic that can be
inherited is a(n)
a. gene
b. trait
c. cross
d. allele
8. Which law states that organisms inherit two
2. Which statement describes the chromosome
shown?
a. It is made up of four histones
b. It is made up of four centromeres
c. It is made up of four chromatids
d. It is made up of four telomeres
3. One difference between a cancer cell and a
normal cell is that:
a. normal cells cannot make copies
b. cancer cells divide uncontrollably
c. normal cells divide uncontrollably
d. cancer cells cannot make copies
4. Two similar chromosomes that you inherit
from your parents (one from your mother,
one from your father) are called:
a. sex chromosomes
b. homologous chromosomes
c. sister chromatids
d. homozygous alleles
5. Mitosis produces cells with how many
chromosomes?
a. 44 c. 23
b. 22 d. 46
6. Which of the following cell types is
diploid?
a. somatic cell
b. ovum
c. sex cell
d. gamete
copies of each gene and donate one copy to
each of their offspring?
a. law of independent assortment
b. law of inheritance
c. law of genetic linkage
d. law of segregation
9. Mendel knew that the variations in the
offspring generations resulted from his
experiments because he
a. controlled the fertilization process
b. changed the growing conditions
c. allowed plants to cross-pollinate
d. ensured that plants self-pollinated
10.Recessive alleles may not be expressed
because they are
a. mask the dominant allele
b. the most common allele in a
population
c. masked by a dominant allele
d. the least common allele in a
population
11.During Interphase a cell grows, duplicates
organelles, and
a. copies DNA
b. produces a new cell
c. divides the nucleus
d. divides the cytoplasm
12.Growth factors and cyclins:
a.
b.
c.
d.
cause cancer cells to break away
prevent mitosis
cause apoptosis
control the cell cycle
13.Which of the following tools is used to
match up chromosome pairs using chemical
stains?
a. meiosis map
b. linkage map
c. karyotype
d. pedigree chart
19.Which statement about the process of
binary fission is false?
a. It takes place in multicellular
organisms
b. It produces genetically identical
offspring
c. It involves the division of cytoplasm
d. It requires the duplication of DNA
14.Mendel's second law of genetics, the law of
independent assortment, is one
explanation of the:
a. Random fertilization
b. Genetic variation within species
c. Dominant alleles are better
d. Why organisms die
15.Which of the following events is an
important factor in increasing variety
among sexually reproducing organisms?
a. fertilization
b. testcross
c. crossing over
d. gene linkage
16.Human height occurs in a continuous range
because it is affected by the interaction of
several genes, making it a(n)
a. autosomal trait
b. sex-linked trait
c. polygenic trait
d. codominant trait
17.A female is born with attached earlobes,
which is a recessive phenotype. Which of
the following genotypes could her parents
have?
a. Rr and rr
b. Rr and RR
c. RR and rr
d. RR and RR
18.Which of the following is true of malignant
tumors?
a. They can cause tumors in other parts
b. They do not require treatment
c. They are easily removed
d. They contain cells that stay clustered
together
20.What is the name of the process shown in the
diagram?
a. Meiosis
b. Binary Fission
c. Mitosis
d. Regeneration
21.What is the correct order for the process shown
in the diagram?
a. C, B, A, D
b. B, C, D, A
c. C, D, B, A
d. B, C, A, D
22.Describe the events that take place in part B in
the diagram.
a. Nucleus forms
b. Chromosomes line up in the middle
c. Sister chromatids move apart
d. DNA condenses into chromosomes
23.What is the main reason that sex-linked
disorders are most often observed in males?
a. Y chromosome cannot cause genetic
disorders
b. Only X chromosome has genes for
gender
c. Only X chromosome has the genetic
disorders
d. Y chromosome cannot mask alleles
on the X
24.Suppose a person is a carrier for a genetic
disorder. Which of the following phrases
about this person is true?
a. the allele is not passed on due to Y
chromosome inactivation
b. does not have the disorder but can
pass it on
c. cannot pass on the disorder
d. will develop the disorder later in life
27.Figure 6.4 shows the results of a cross
25.Identify the process shown in Diagram 2.
a.
b.
c.
d.
Mendelis
Mitosis
Mituses
Meiosis
26.Write the letter that corresponds to the cells
in the diagram that are haploid.
a. D
b. E
c. H
d. J
between a plant with a known genotype and
a plant of unknown genotype. What is the
term for this type of cross?
a. Monohybrid Cross
b. Dihybrid Cross
c. Testcross
d. True-cross
28.In this plant species, the allele for purple
flowers is dominant and the allele for white
flowers is recessive. Write the genotype for
the offspring that have white flowers.
a. Ff
b. FF
c. ff
d. ?f
29.Write the genotype for the offspring that
have purple flowers.
a. Ff
b. FF
c. ff
d. ?f
30.Predict the genotype for the parent
organism whose genotype is unknown.
a. Ff
b. FF
c. ff
d. ?f