Cells
Punnett
Squares
Heterozygous/
Genetics Fun
Homozygous
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Heredity
The genetic information of a
living organism is located in the
organism's ______.
A. chlorophyll
B. computers
C. cells
D. vacuoles
C. Cell
One pair of genes that determine a
specific trait.
A. Chromosomes
B. DNA molecules
C. Chromatids
D. Alleles
D. Alleles
A ________ can be defined as a
basic unit of hereditary information
which refers to a specific segment of
DNA that influences a particular
trait or group of traits.
A. chromosome B. genome C.
gene D. zygote
C. Gene
Which of the following is true about
genes?
A. Genes are made up of smaller
molecules known as chromosomes.
B. Genes are responsible for all the traits
of an organism.
C. The genes of a particular organism
can never change throughout its lifetime.
D. In humans, genes are passed to an
offspring from two parents.
D. In humans, genes are
passed to an offspring from
two parents.
Within your cells, the genetic
material that controls your traits
is located in an organelle called...
A. the mitochondrion.
B. the chloroplast.
C. the nucleus.
D. the ribosome.
B. Nucleus
B = Brown; b = blue
BB x bb
Provide the % of each
genotype/phenotype
100% Bb (Brown)
DAILY DOUBLE
Sickle-cell anemia is a genetic disorder of the blood in
which the shape of red blood cells is distorted,
resulting in a variety of health problems. The allele for
normal blood cell production (H) is dominant to the
allele for sickle cell Daily
production
(h).
double
If one parent has sickle-cell anemia and the other
parent is a carrier, what is the probability that their
child will have sickle-cell anemia?
Parents: Hh x hh
50% hh (sickle cell anemia)
50% Hh (carrier)
In humans, the allele for brown eyes
(B) is dominant to the allele for blue
eyes (b). What is the probability that
two heterozygous brown-eyed
parents will have a child with blue
eyes?
A. 50% B. 0% C. 75% D. 25%
D. 25%
In a particular type of cat, coat color follows the
dominant/recessive pattern of inheritance. The
allele for a brown coat (B) is dominant to the
allele for a white coat (b).
A cross between two white-coated cats would
result in...
A. white-coated kittens or brown-coated kittens.
B. white-coated kittens only.
C. brown-coated kittens only.
D. white-coated kittens with brown spots.
B. White Kittens only
In fruit flies, the allele for white eyes (W) is dominant
to the allele for red eyes (w). Two heterozygous fruit
flies are crossed, resulting in many offspring.
Which of the following would best describe the
population of offspring?
A. All of the offspring population is white-eyed.
B. The majority of the offspring population is whiteeyed.
C. The majority of the offspring population is red-eyed.
D. About half of the offspring population is red-eyed,
and the other half of the population is white-eyed.
B. The majority of the offspring
population will be white eyed.
An organism that contains two of
the same alleles for a trait is said
to be __________ for that trait.
A. recessive B. heterozygous
C. homozygous D. dominant
C. Homozygous
An organism that contains two
different alleles for a trait is said
to be __________ for that trait.
A. recessive B. heterozygous
C. homozygous D. dominant
B. heterozygous
If a Homozygous Brown (B) fur
cat and a Heterozygous Brown
fur cat have offspring, what is the
probability the kittens will have
homozygous brown fur?
A. 25%
C. 75%
B. 50%
D. 100%
B. 50%
Huntington's disease is a genetic disorder that can result in
memory loss and abnormal body movements. Huntington's
disease results from a defective gene (H) that is dominant
to the allele that produces normal function (h). This means
that...
I.if someone is heterozygous for Huntington's disease, then
he/she will be a carrier but will not have the disease.
II.if a child has Huntington's disease, then at least one of
his/her parents has the disease.
III.if two parents do not have Huntington's disease, then
their children will not have the disease.
A. I, II, and III
B. II and III only
C. II only
D. I and II only
B. II and III only
Would these parents have
heterozygous or homozygous
offspring?
TT x tt
Heterozygous Tt
The instructions, or code, that is
responsible for all the inherited traits of
an organism...
A. is formed after an organism is fullygrown.
B. is held in genetic material called
DNA.
C. is stored within the mitochondria of
cells.
D. is passed from the offspring to the
parent.
B. Is held in genetic material
called DNA
A molecule of DNA is "packaged" and
carried by a larger molecule called a
__________.
A. vacuole B. chromosome
C. gamete D. diploid
B. chromosome
Which of the following are true?
I.A single gene can control a single trait.
II.A single gene can influence multiple
traits.
III.A single trait can be controlled by
multiple genes.
A. I and II only B. II and III only
C. I and III only D. I, II, and III
D. I, II, and III
A widow's peak is a V-shaped area of the
hairline in the center of the forehead. The
allele for having a widow's peak is
dominant to the allele for not having a
widow's peak. If two parents do not have
widow's peaks, what is the probability
that their child will have a widow's peak?
A. 75% B. 0% C. 50% D. 25%
(Daily Double)
B. 0%
Daily Double!!!
Many human diseases follow the
dominant/recessive pattern of
inheritance. If an individual
possesses an allele for a disease, but
does not have the disease, this
person is known as a ___________.
A. mutant B. genotype C. carrier
D. messenger
C. Carrier
Who is the Austrian monk that
worked with pea plants and is
credited with first proposing a
theory of heredity?
A.Gregor Mendel
B.Charles Darwin
C.Robert Hooke
D.Rudolph Virchow
A. Gregor Mendel
During the process of
reproduction, what type of
information is passed from parent
to offspring?
A.photosynthetic information
B.photographic information
C.parental information
D.genetic information
D. Genetic information
Genes are short segments of DNA
and are located on the _______ in a
cell.
A.vacuoles B.chromosomes
C.ribosomes D.lysosomes
B. chromosomes
Which of the following is not an
inherited trait in humans?
A.color of eyes
B.length of hair
C.color of skin
D.ability to roll tongue
B. length of hair
What is the process used to
assure desirable characteristics,
or traits, in the offspring of
animals?
A.selective breeding
B.DNA
C.amino acids
D.selective mutations
A. Selective breeding