Genetics & Heredity Quiz
1.
Matching #1-8
the passing of traits from parent to offspring
2. an organism with 2 different alleles for a trait
(one dominant and one recessive)
3. Mendel’s “factors” that control traits are actually
4. physical characteristics of an organism
5. an allele whose trait always shows up in an organism
6. the different forms of the same gene
7. the scientific study of heredity
.
a.
b.
c.
d.
e.
f.
g.
h.
8. an allele whose trait is masked in the presence of a
dominant allele.
genetics
alleles
traits
recessive
allele
genes
hybrid
heredity
dominant
allele
9. If I talk about a person’s brown eyes, I am describing a
a. Genotype
b. Phenotype
c. Trait
d. Both b & c
10. If a person has the alleles Ww for the “Widows Peak” trait, we would say they are
a. homozygous
b. heterozygous
c. pure for the trait
d. homodominant recessive
e. a vampire
11. A Punnett square is used to
a. Determine the genotypes of the parents
b. Determine how many offspring the parents will have
c. Determine the probability of genotypes of the offspring
12. Two parents are heterozygous for long eyelashes. L = long eyelashes, l = short eyelashes. What are the
possible genotypes of their offspring? Make a Punnett square on your answer sheet to solve.
a. LL, Ll, and ll
b. LL, ll only
c. long eyelashes only
d. short eyelashes only
e. long and short eyelashes
13. What are the possible phenotypes of the offspring in number 12?
a. LL, Ll, and ll
b. LL, ll only
c. long eyelashes only
d. short eyelashes only
e. long and short eyelashes
14. Based on the Punnett Square for #12, what percentage of the offspring would you expect to have Long
Eyelashes (Long Eylashes is a dominant trait)?
a. 0
b. 25
c. 50
d. 75
e. 100
15. Gametes or “sex cells” are formed during the process of
a. Meiosis
b. Mitosis
c. Cellular respiration
d. DNA replication
16. Gametes will have
a. The same number of chromosomes as a body cell
b. Twice as many chromosomes as a body cell
c. Half as many chromosomes as a body cell
d. No chromosomes
17. We use letters to describe the genes for a given trait inherited from parents. For example, BB, Bb, or bb
for eye color. These are examples of
a. Prefixes
b. Phenotypes
c. Sister chromatids
d. Genotypes
e. Little metal ammunition for guns that can put your eye out kid.
18. Homozygous refers to
a. Identical twins
b. A chromosome pair that codes for all the same traits
c. Matching alleles for a single trait: example – PP or ss
d. Allergic to homogenized milk
19. Finn the human finally gets Marceline to fall in love with him. He does this by pasting on a fake widow’s
peak (she is a vampire and we all know that vampires are attracted to widow’s peaks)… but all of that is
beside the point. They eventually marry and have children. It turns out that fangs are a recessive trait
and Marceline comes from a long line of fanged vampires. She is a purebred. Fin of course is pure for nofangs. Using the letter “f” to represent the trait, create a Punnett square and answer the following
questions. The Punnett square WILL be graded as well as the answers.
20. What is Marceline’s genotype?
21. List the possible genotypes of their children?
22. What percentage of their children should have fangs?
23. What percentage of their children will be heterozygous?
24. What percentage of their children will be hybrids?
25. It turns out that vampires are colorblind. This explains why they are not grossed out by blood… to them
it looks like grape juice. Knowing that Marceline is colorblind and that colorblindness is a sex-linked
trait, what are the odds that little Marfin (Marceline and Fin’s son) will be colorblind?
Genetics & Heredity Quiz
1.
Name
‘
2.
3.
4.
5.
6.
Work Area for #12
7.
8.
9.
10.
11.
12.
13.
14.
15.
Work Area for #19
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
Explain:
Per