Unit 7: Genetics
LTC #13
Name: _____________________________________ Date: ____________________________ Period: _______
LT #1 – I can describe the basic process of meiosis.
1. Sex cells—like eggs and sperm—are produced by a process called
A. Meiosis
B. Mitosis
C. Interphase
D. Binary Fission
2. How many chromosomes does a human gamete have?
A. 4
B. 23
C. 44
D. 46
3. In humans, each parent contributes 23 chromosomes resulting in 23 pairs of
chromosomes in cells. The chromosomes that make up the pair are called
A. Haploid
B. Chromatin
C. Sister chromatid
D. Homologous chromosomes
4. What process does this figure show?
A.
B.
C.
D.
Prophase II of Meiosis
Crossing over
Cytokinesis
The cell cycle
5. Meiosis produces
A. Two identical daughter cells
B. Two diploid daughter cells
C. Four haploid daughter cells, each with half the chromosomes as the parent
cell
D. Four diploid daughter cells, each with the same number of chromosomes as
the parent cell
Unit 7: Genetics
6. What phase of meiosis is shown in the figure below?
A.
B.
C.
D.
Prophase II
Metaphase I
Telophase I
Telophase II
7. What phase of meiosis is show in the figure below?
A.
B.
C.
D.
Metaphase II
Prophase I
Telophase II
Metaphase I
LT #2 – I can identify and explain Mendel’s experiments, the law of segregation, and
the law of independent assortment.
8. The father of genetics is
A. Mendel
B. Einstein
C. Newton
D. Darwin
Unit 7: Genetics
9. The study of heredity is known as
A. Ecology
B. Chemistry
C. Genetics
D. Evolution
10. Which of Mendel’s laws states that two alleles for each trait separate during the
formation of gametes (meiosis).
A. Law of conservation of energy
B. Law of segregation
C. Law of independent assortment
D. Law of conservation of mass
11. Which of Mendel’s laws states that genes for different traits segregate
independently, such that the genes for one trait do not influence another trait?
A. Law of conservation of energy
B. Law of conservation of mass
C. Law of independent assortment
D. Law of segregation
LT #3 – I can define and provide examples of the following: genotype, phenotype,
dominant allele, recessive allele, homozygous, and heterozygous.
12. Different forms of a single gene are called
A. Genetics
B. Allele
C. Recessive
D. Dominant
13. Based on his observations, he decided that some alleles must be ___________ over
others. We called the allele that gets masked ____________.
A. Dominant, Recessive
B. Haploid, Diploid
C. Recessive, Dominant
D. Diploid, Haploid
14. Which of the following represent a heterozygote?
A. YY
B. Yy
C. yy
D. None of the above
Unit 7: Genetics
15. Which of the following represents a homozygous recessive?
A. TT
B. Tt
C. tt
D. All the above
16. If tall stems are dominant over short stems in pea plants, which of the following
would be the genotype of a short-stemmed pea plant?
A. TT
B. Tt
C. tt
D. None of the above
17. If tall stems are dominant over short stems in pea plants, which of the following
would represent the phenotype of pea plant with the genotype Tt?
A. Tall
B. Short
C. Yellow
D. Wrinkled
LT #4 - I can construct and interpret Punnett squares.
18. In rabbits, black fur is dominant over white fur. Cross a heterozygous black
male with a homozygous white female. How many of the offspring will have white
fur?
A. 0 of 4
B. 2 of 4
C. 1 of 4
D. 3 of 4
19. In humans, free-ear lobes are dominant to attached. Cross two parents that are
both heterozygous free are expecting a child. How many of the children will also be
heterozygous for the trait?
A. 1 of 4
B. 0 of 4
C. 3 of 4
D. 2 of 4
Unit 7: Genetics
20. In pea plants, there are two alleles for seed texture (R = round and r = wrinkled)
and two alleles for seed color (Y = yellow and y = green) Cross two pea plants that
are heterozygous for each trait. How many of the predicted offspring will be round
and yellow?
A. 1 out of 16
B. 3 out of 16
C. 6 out of 16
D. 9 out of 16