Download Unit Test: Genetics Name: Date: Period: The diagram shows a plant

Unit Test: Genetics
TEST NAME: S.7.SCA.2ND.TEST1.1213
TEST ID: 11198
GRADE: Seventh Grade
SUBJECT: Life and Physical Sciences
TEST CATEGORY: District Benchmark
Name: __________________
Date: ___________________
Period: _________________
1. The diagram shows a plant cell. The part of the cell that stores genetic
information is —
A. V
B. X
C. Y
D. Z
2. One type of genetic material that carries the inherited traits of an
organism from parent to offspring is —
A. the nucleus
B. cells
C. DNA
D. heredity
Unit Test: Genetics
3. Why are the offspring produced by sexual reproduction more diverse than
the offspring produced by asexual reproduction?
A. The offspring in sexual reproduction inherit genetic material from two
parents as opposed to one parent.
B. Only sexual reproduction involves inheritance.
C. Sexual reproduction passes the genetic information to offspring so that it
remains unchanged.
D. The offspring in sexual reproduction inherit their genetic information
from either their male or female parent.
4. Which of the following best describes the purpose of chromosomes?
A. To release energy by breaking down food molecules
B. To store genetic instructions needed to specify traits
C. To store materials inside the cell
D. To control what enters and exits the cell
5. Which statement best defines genes?
A. A pair of chromosomes in the nucleus
B. A section of DNA stored within a chromosome
C. The expressed trait of an organism
D. The masked allele of an organism
Unit Test: Genetics
6. The flatworm in the illustration was accidentally cut into three pieces
while swimming among rocks. Each piece will produce a complete worm.
As a result, one flatworm will have produced three offspring. What
conclusion can you make from these observations?
The flatworm produces —
A. offspring identical to one another but different from the parent
B. offspring that are identical to each other and the parent
C. three diverse offspring
D. offspring that will not able to reproduce
7. How does sexual reproduction assist adaptation to changing
environments?
A. Offspring of sexual reproduction have the same genes as each other
and their parent.
B. The combination of traits from two parents creates identical offspring.
C. Sexual reproduction can be used for regeneration in some organisms.
D. The combination of traits from two parents provides opportunity for
Adaptation (traits that help organism survive).
8. The inherited traits of an individual are contained in its —
A. genetic material
B. environment
C. learned behaviors
D. food
Unit Test: Genetics
9. Two different species of fish are represented below.
Which species of molly reproduces asexually?
A. Sailfin mollies reproduce asexually because one parent contributes all
of the genetic material resulting in uniform offspring.
B. Sailfin mollies reproduce asexually because two parents contribute
their genetic material resulting in diverse offspring.
C. Amazon mollies reproduce asexually because one parent contributes
all of the genetic material resulting in uniform (identical) offspring.
D. Amazon mollies reproduce asexually because two parents contribute
their genetic material resulting in diverse offspring.
Unit Test: Genetics
10. In offspring, when a dominant allele (F) and a recessive allele (f) are
present, which of the following statements is true?
A. The recessive form of the trait will be observed.
B. The recessive allele will blend with the dominant allele.
C. The recessive form will not be observed but will still be present
in the genes.
D. The recessive form will not be observed and cannot be passed
on to future offspring.
11. When two parents produce an offspring, which of the following
statements is true?
A. Each parent randomly passes on copies of half of their
chromosomes.
B. Both parents pass on copies of all of their chromosomes.
C. Each parent gets to choose which ones and how many
chromosomes get passed on.
D. Parents don’t pass on any chromosomes.
12. The structure shown in the picture provided is found in the nucleus
of the cell and contains genetic material.
What is the structure in the diagram?
A. An allele
B. An organism
C. A gene
D. A chromosome
Unit Test: Genetics
13. If we are zooming in on a cell, which structures would we encounter
beginning from the largest to the smallest?
A. Nucleus, chromosomes, genes
B. Genes, chromosomes, nucleus
C. Nucleus, genes, chromosomes
D. Genes, nucleus, chromosomes
14. What creates diverse offspring?
A. Budding
B. Sexual reproduction
C. Large populations
D. Homozygous dominant allele pairs
Dominant
Recessive
Hair Color
B = brown
b=blonde
Eye Color
E = brown
e = blue
Hair texture H = curly
h = straight
15. Jocelyn’s phenotype includes curly brown hair and brown eyes.
Which set of genotypes could represent Jocelyn’s genotype?
A. bb, ee, Hh
B. Bb, Ee, hh
C. Bb, Ee, HH
D. BB, EE, hh
Unit Test: Genetics
16. If the allele for red eyes in fruit flies is dominant, which of the following
could describe the correct genotype and phenotype of a fruit fly with red
eyes?
A.
B.
C.
D.
Genotype: Rr; phenotype: Red eyes
Genotype: rr; Phenotype: Red eyes
Genotype: Red eyes; Phenotype: Rr
Genotype: Red eyes; Phenotype: rr
17. The hydra is a freshwater organism that is related to the sea
anemone. It reproduces by growing an offshoot of the
parent organism called a bud. Budding is a form of asexual
reproduction. What can we conclude about the new hydra?
A. It would have genetic material from many hydra.
B. It would have genetic material somewhat similar to the
parent hydra.
C. It would have genetic material exactly like the parent
hydra.
D. It would have genetic material from several different
types of organisms.
18. A female brown mouse mates with a male white mouse
and produces 11 offspring. Six of the offspring are brown
and five of the offspring are white. If brown color is
dominant to white, why aren’t all of the offspring brown?
A. The female mouse was fed marshmallows, which
caused some of the offspring to be white.
B. The white mouse also contains a dominant allele for
brown fur.
C. Pollution in the air and water caused some of the
offspring to turn white.
D. The brown mouse contains a recessive allele for white
fur.
Unit Test: Genetics
19. A teacher asked her students if it was possible for 2 parents with brown
eyes to have a blue-eyed child. Which student response do you agree with?
A. Noah: No, it is not possible because brown eyes are always dominant.
B. Luis: Yes, it is possible because the child’s eye colors are always random.
C. Kathy: No, it is not possible because eye color is inherited from the
mother. If she had brown eyes, the child cannot have blue eyes.
D. Allison: Yes, it is possible because the child could have inherited two
recessive genes for blue eyes from the parents.
Dominant Recessive
Feather color F = black
f = grey
Eye Color
E = red
e = yellow
Beak shape
B = curved b = straight
20. The alleles for a hawk are shown in the table above. A red-tailed hawk
has yellow eyes.
What type of alleles for eye color does the red-tailed hawk have?
A. Homozygous Dominant
B. Heterozygous Dominant
C. Homozygous Recessive
D. Heterozygous Recessive