Name_______________
Genetics Vocab Quiz
Vocabulary Matching:
a. Genetics
b. Trait
c. Purebred
d. Gene
e Alleles
f. Punnett Square
g. Probability
h Heterozygous
i. Dominant Allele
j. Recessive Allele
k. Homozygous
l. Genotype
m. Phenotype
1. ____ An organism that has two identical alleles for a trait.
2. ____ An organism’s physical appearance, or visible traits.
3. ___ An organism that is the offspring of many generations that have the same trait.
4. ____ A chart that shows all the possible combinations of alleles that can result from a genetic cross.
5. ____ The scientific study of heredity.
6. ____ The factors that control a trait.
7. ____ An allele that is hidden whenever the dominant allele is present.
8. ____ The different forms of a gene.
9. ____ An organism’s genetic makeup or allele combination.
10. ____ A characteristic that an organism can pass on its offspring through its genes.
11. ____ An allele whose trait always shows up in the organism when the allele is present.
12. ____ The number that describes how likely it is that an event will occur.
13. ____ An organism that has two different alleles for a trait.
16. Fill in the Punnett Squares:
T
b
t
t
BB
t
b
B
m
m
M
T
T
MT
17. R=can roll tongue r=cannot roll tongue
Cross a person who is heterozygous for rolling their tongue with a person who cannot roll their tongue
their tongue? _________ What is the probability
that their offspring cannot roll their
tongue?_________
What is the probability that their offspring can roll
18. Cross a person who is heterozygous for rolling their tongue with a person who is homozygous for
rolling their tongue.
their tongue? _________ What is the probability
that their offspring cannot roll their
tongue?_________
What is the probability that their offspring can roll
19. Is it possible for two people who can roll their tongue to have a child who cannot roll their tongue?
20. Is it possible for two people who cannot roll their tongue to have a child who can roll their tongue?