Download Name: Date: Class:______ Genetics Unit Review Sheet (Unit Test

Name: __________________________________ Date: _________________
Class:__________
Genetics Unit Review Sheet (Unit Test on Feb. 21/22)
Column A
Column B
1. the passing of traits from parents to offspring
a. egg
2. an organism with the same alleles for a trait
b. genetics
3. factors that control traits
c. recessive
4. physical characteristics of organisms
d. pea plant
5. an allele whose trait always shows up in the organism
e. zygote
6. the different forms of a gene
f. Punnett Square
7. the scientific study of heredity
g. sex-linked
8. an allele whose trait is masked in the presence of a dominant allele
h. heredity
9. alleles passed from parent to child on a sex chromosome.
i. meiosis
10. Three or more forms of a gene that code for a single trait are called
j. homozygous
11. one recessive allele for a trait and one dominant allele for the same trait
k. pedigree
12. chart that tracks which members of a family
l. dominant
13. fertilized egg
m. codominance
14. male gamete
n. cloning
15. female gamete
o. probability
16. Fertilized egg that has undergone up to 8 weeks of development
p. phenotype
17. process by which sex cells are created
q. embryo
18. known as the father of genetics
r. alleles
19. composed of DNA
s. chromosome
20. the likelihood that a particular event will occur
t. genes
21. an organism’s genetic makeup, or allele combinations
u. Gregor Mendel
22. inheritance pattern in which the alleles are neither dominant nor recessive
v. genotype
23. a chart that shows all the possible combinations of alleles that can result from a
genetic cross
w. heterozygous
24. process of producing similar populations of genetically identical individuals
x. multiple alleles
25. Pisum sativum
y. sperm
Which type of reproduction produces a greater variation among offspring?
a. Both sexual and asexual reproduction
b. Neither sexual or asexual reproduction
c. Asexual reproduction
d. Sexual reproduction
What is the reason that a trait like eye color in humans tends to run in families?
a. Eye color is an environmental trait
b. Eye color is a genetic trait
c. Eye color is a chemical trait
d. Eye color occurs by chance
Alexa has blue eyes. What is her genotype? B - brown, b - blue
Mother
Father
BB
Bb
Bb
bb
a. bb
b. bb
c. Bb
d. Not enough information
Alexa’s brother, Matt, has brown eyes. Which statement best describes one way that Matt could have gotten brown
eyes: (B - brown, b - blue)
Mother
Father
BB
Bb
Bb
bb
a. Matt was born with blue eyes, but they turned brown as he got older
b. Matt received a brown-eyed gene from at least one parent.
c. Matt received both eye color genes from both parents
d. Matt’s eye color came from his father
What is the chance that a baby rabbit will have black fur? (B - black, b- white)
Mother
B
B
Father
B
b
a. 50%
b. 25%
c. 100%
d. 75%
Adam cut his hand and the damaged cells need to be replaced. Mitosis is the cell division process that will replace the
damaged cells with new cells. What statement best describes the genetic makeup of the new cells?
a. They contain the same genetic information as the damaged cells
b. The contain genetic information that is different from the damaged cells.
c. The contain no genetic information
d. They contain a bacterial infection that will form the new cells
Black (B) is dominant to white (b) and tall (T) is dominant to short (t). What Percentage of offspring will
be black and sshort if you cross BbTt with bbtt?