Download PreAssessment - Boone County Schools

Name: __________________________
Quiz 1
Name: ______________________________
Heredity: Unity & Diversity Pre-assessment
Part I. Asexual & Sexual Reproduction
1. What is the process of cell division that creates sex cells?
2. In mitosis, how does the amount of DNA in the daughter cells compare to the amount of
DNA in the original cell?
3. In meiosis, how does the amount of DNA in the daughter cells compare to the amount of
DNA in the original cell?
4. Complete the chart by marking which statement is true for asexual, sexual reproduction
or both:
Asexual Reproduction
Sexual Reproduction
DNA of the offspring is
identical to that of the parent
Some plants reproduce this
way
Requires two different parent
(sex) cells.
DNA of the offspring is
different than that of both
parents.
Each time offspring are
formed, a new combination of
traits is passed.
Advantage- variation among
offspring allows for
adaptations and natural
selection to occur.
A new organism (sometimes
more than 1) is produced
from only one organism.
Disadvantage- offspring are
exact copies of their parents,
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Quiz 1
so organisms don’t change
much over generations.
Doesn’t allow for adaptations
and natural selection
Advantage- no need to find a
mate!
Disadvantage- organisms
must find a mate in order to
reproduce.
Budding, regeneration,
fission are examples of this
Part II. Genetics
1. In pea plants, tall is dominant over short. (Create a Punnett Square)
a) What size pea plants will result when a pure tall plant is crossed with a pure short plant?
b) What percent of offspring would be tall?
2. One cat carries heterozygous, long-haired traits (Ss), and its mate carries homozygous shorthaired traits (ss).
a) Use a Punnett square to determine the probability of one of their offspring having long hair.
b) List the genotypes of the parents and identify their phenotype.
3. One flower is heterozygous red (Rr) and it is crossed with a homozygous white (rr) plant.
a) Use a Punnett square to determine the probability of one of their offspring having a red color.
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Quiz 1
b) List out all of the possible genotypes for the offspring and identify what their phenotype
would be. (Hint: There are four genotypes and phenotypes.)
4. When a capital letter is used, what kind of allele is being represented?
A.
B.
C.
D.
Recessive Allele
Codominance
Punnett Squares
Dominant Allele
5. If a pea plant has a gray seed coat color, is that the pea plants phenotype of genotype?
A.
B.
C.
D.
Phenotype
Genotype
Neither
Both
6. Black is the dominant color of bunny's fur, it can be expressed using what
genotype combination?
A.
B.
C.
D.
E.
Bb
BB
bb
Just A and C
Just A and B
7. When two identical alleles for a trait are in an organism, the organism is said to be
____________? (What are the two possible answers)
A.
B.
C.
D.
heterozygous
homozygous
hybrid
purebred
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Quiz 1
8.An allele that is masked when a dominant allele is present
A.
B.
C.
dominant
trait
recessive
D.
selective breeding
9. A chart that shows all the possible combinations of alleles that can result from a
genetic cross
A.
B.
C.
D.
Hybrid Cross
Punnett square
meiosis
selective breeding
10. What is the genetic makeup of an organism?
A.
B.
C.
D.
Phenotype
Genotype
Neither
Both
In rabbits, being albino is a recessive trait (a). Not being albino is dominant (A).
11.What are the possible genotypes of a non-albino rabbit?
12. Would the following be homozygous, heterozygous, homozygous recessive or homozygous
dominant?
a) HH ____________________
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Quiz 1
b) Hh ____________________
c) hh ____________________
13) Would the following be a hybrid or a purebred?
a) qq ____________________
b) Qq ____________________
14) What is the relationship between the vocabulary words heterozygous and hybrid?