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Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
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SC08 : Test Bank
Knowledge & Skills
ASSESSMENT TYPES (Grouped by school and teacher)
Multiple Choice/Matching/True-False
Short Answer/Fill-in/Essay
Performance/Task/Project
Other
Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
Multiple Choice/Matching/True-False
Rhodes- Little
Matching: Write the letter to the term that best fits the definition or description below.
A. heredity
B. cross
C. recessive trait
D. dominant trait
E. genetics
F. trait
1. passing traits from parents to offspring
2. a trait that disappeared in the 1st generation and reappeared in the 2nd in Mendel’s experiments
3. traits from two parents are placed together to determine the traits of their offspring
4. different forms of a physical characteristic
5. a trait that appeared in the 1st and 2nd generations in Mendel’s experiments
6. the scientific study of heredity
Comparisons: Write each pair of words in the correct order to match the order of each description below.
CHOICES
7. (recessive or dominant)
8. (Genetics or heredity)
9. (allele or gene)
____ = takes over
____ = study passing traits
____ = pair
____ = hides
____ = passing traits
____ = single
Matching: Write the letter to the term that best fits the definition or description below.
A. allele
B. co-dominant
C. cross
D. dominant allele
E. gene
F. genotype
G. heterozygous
H. homozygous
I. phenotype
J. probability
K. Punnett square
L. recessive allele
1. outward appearance
2. 2 sets of instructions for one trait
3. 2 different alleles are dominant together
4. 2 dominant alleles or 2 recessive alleles
5. to mix the gene traits from two parents
6. a tool used to show gene combos and predict the probability of a trait for a set of parents
7. covers a recessive allele
8. gene combination inside an organism
9. covered by a dominant allele
10. 1 dominant allele + 1 recessive allele
11. the mathematical chance that something will happen
12. form of a gene
Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
Calculations: Determine the probability of receiving an allele for light eyes (d) for each parent below.
13. dd parent = _____%
14. DD parent = _____%
15. Dd parent = _____%
Comparisons: Place each word pair in the correct order to match the order of each description below.
CHOICES
16. (recessive or dominant)
17. (heterozygous or homozygous)
18. (allele or gene)
19. (genotype or phenotype)
____ = covers up
____ = different
____ = one
____ = outside
____ = gets covered up
____ = same
____ = 1 pair
____ = inside
Smith – Gratkins
1. Vocabulary Matching: Choose the letter that best matches each numbered item.
1) physical characteristics
2) traits passed from parent to child
3) different forms of a gene
(ex: dominant & recessive)
4) physical appearance of a trait
a.
b.
c.
d.
e.
f.
heredity
traits
allele
genotype
phenotype
probability
5) likelihood that a particular genotype or
phenotype will appear
6) two letters representing gene combination
2. John has a genotype of EE for earlobe shape. What is another way to describe this genotype?
a. heterozygous
c. homozygous recessive
b hybrid
d. homozygous dominant
3. What happens to a recessive allele (e) when a dominant allele (E) is present? (for complete dominance)
a. neither trait will show
c. the recessive trait will not show
b the recessive trait will show
d. both recessive and dominant traits will show
4. In cats, there are two types of ears: normal and curly. A curly-eared cat mated with a normal-eared cat and
all of the kittens had curly ears. What type of trait are curly ears?
a. dominant
c. strong
b. recessive
d. weak
Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
Use the information in this table to answer questions #5-6.
Trait
Earlobes
Widow’s peak
Roll tongue
PTC taster
Eye color
Dominant Allele
Free (E)
Present (W)
Yes (T)
Yes (P)
Dark (D)
Recessive Allele
Attached (e)
Not present (w)
No (t)
No (p)
Light (d)
5. What is the phenotype for the gene combination Dd?
a. Eye color
c. Light eyes
b Dark eyes
d. not enough information is given
6. What is the genotype for someone with attached earlobes?
a. EE
c. Ee
b ee
d. EE or Ee
7. Examine the following Punnett square. A brown eyed person (DD) and a blue eyed person (dd) have
several children.
D
D
d Dd
Dd
d Dd
Dd
Which statement describes the probable eye color of their children?
a. half will have brown eyes, and half will have blue eyes
b less than half will have brown eyes
c. all will have brown eyes
d. all will have blue eyes
Use the information in this table to answer questions #8-10.
Jackrabbit Trait
Ear Length
Fur Color
Dominant Allele
Long (E)
Brown (B)
Recessive Allele
Short (e)
White (b)
8. What is the phenotype for the gene combination Ee?
A. long ears
B. short ears
C. brown fur
D. white fur
9. What is the genotype for a jackrabbit with white fur?
A. BB
B. Bb
C. bb
D. BB or Bb
Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
A purebred brown rabbit (BB) and a purebred white rabbit (bb) have offspring. Examine the following Punnett
square for this cross.
B
B
b Bb
Bb
b Bb
Bb
10. Which statement describes the probable fur color of the offspring?
A. all will be brown
B. all will be white
C. less than half will be brown
D. half will be brown and half will be white
Shepherd-Code
1. Genetics is the study of
a.. digestion
b.. growth
c.. circulation
d.. heredity
2. The gene that is hidden or masked by another form of the trait is called
a. a hybrid
b. dominant
c. recessive
d. incomplete or co-dominance
3. A person having two genes that are the same is said to be
a. hybrid
b. heterozygous
c. homozygous
d. weird
4. A person with one dominant and one recessive gene is
a.. heterozygous
b. homozygous
c. purebred
d. co-dominant
5. Which of the following would be an example of a phenotype?
a. TT
b. heterozygous
c. blue eyes
d. pure recessive
6. Which of the following is NOT true for dominant genes?
a. They are represented by capital letters.
Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
b. All purebred are dominant genes.
c. They are the trait that shows in a hybrid.
d. They mask or hide recessive genes.
7. In the Punnett square to the right, what is the probability of getting a heterozygous offspring?
A. 25%
B. 50%
C. 75%
D. 100%
8. In the Punnett square to the right, how many different
phenotypes are shown in the offspring?
A. one
B. two
C. three
D. four
9. In the Punnett square to the right, how many different
genotypes are in the offspring?
A. one
B. two
C. three
D. four
10. Which statement describes the parents in the punnett square?
A. both purebred dominant
B. both hybrids
C. a purebred and a hybrid
D. both purebred recessive
Fremont- McGee
1. A condition in which the two alleles of a gene are different like (Ww).
a. traits
b. recessive
c. co-dominance
d. heterozygous
2. An allele whose trait always shows up when it is present is…
a. dominant
b. recessive
c. co-dominant
d. co-recessive
3. An allele that seems to disappear (or is covered up) when a dominant allele is present is called…
a. co-dominant
b. dominant
c. recessive
d. co-recessive
Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
4. An organism’s gene type, or allele combination (shown with 2 letters) is known as its ______________
a. phenotype
b. genotype
c. heterotype
d. notmytype
5. An organism’s physical appearance, or what it looks like is called its…
a. phenotype
b. genotype
c. heterotype
d. notmytype
Match the correct term with the correct definition.
6. _____ passing of traits from parent to offspring
7. _____ a cross between two different alleled parents
8. _____ factors that control traits
9. _____ a cross between two same alleled parents
A. genes
B. heredity
C. purebred
D. hybrid
10. In the blood typing system (A-B-O) two of the alleles are both dominant which means they are…
a. recessive
b. phenotypes
c. co-dominant
d. heredity
TOP
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Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
Short Answer/Fill-in/Essay
Rhodes-Little
1. What ratio did Mendel discover always existed between dominant to recessive traits in the 2nd generation?
2. From his experiments, Mendel made two conclusions.
How many sets of instructions for each characteristic does each parent plant donate to its offspring?
How many sets of instructions does each parent plant have for each characteristic?
Completion: Write the word(s) that best completes each statement below.
The two forms alleles come in are 3 and 4 .
If we reword Mendel’s conclusions, we can better understand his findings. When he stated that for each
characteristic each parent has “2 sets of instructions,” this now means 1 pair of “ 5 .” When he stated
that for each characteristic each parent donates “1 set of instructions,” this now means one “ 6 ” is
donated from each parent.
Symbols are used to represent dominant and recessive alleles. A 7 is used for a recessive allele and a
8 is used to represent a dominant allele.
Blood Types:
9. ________
Type A
Type B
Type AB
Type O
Which of the phenotypes above is a co-dominant blood type?
10. _______________ Which blood types above have more than one genotype combination to produce that blood type?
11. ______________________________________________________ Explain how it’s possible for a child to have
type O blood if neither parent’s phenotype is O?
Shepherd-Code
A newspaper column that answers reader’s questions received the following letter from a young girl.
Dear Mr. Know It All,
I am thirteen years old and my older sister is always teasing me and saying that I am adopted. When I
ask my parents, they just laugh and say, “That’s silly,” but they never really say that I’m not. I don’t
look anything like the rest of my family. Everyone in my family has brown eyes, but mine are blue. I
have straight red hair, no one else in my family has red hair and most of my family has curly hair. Do
you think they are just trying to hide the fact that I really was adopted? How can you explain all the
differences?
The Family Misfit
Write a response explaining why she could have traits other then those expressed in the rest of her family. Be
sure to include vocabulary that would help you explain and definitions for words that she may not know the
meaning of. Remember you are writing as an adult working at the newspaper to a young girl.
Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
TOP
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Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
Performance/Task/Project
TOP
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Strand 4: Life Science
Concept 2: Reproduction & Heredity
PO # 3: Distinguish between the nature of dominant and recessive traits
Other
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