Worksheets2nd Quarter Science Final Exam Test
Total questions: 58
Worksheet time: 29mins
Name
Class
Date
1.
The study of how traits are passed from parents to offspring.
a)
fertilization
b)
genetics
c)
seed production
d)
artificial selection
2.
What would this birds beak be best at eating?
a)
insects
b)
nuts and seeds
c)
nectar
d)
other birds
3.
When two animals are breed for certain traits that is an example of what?
a)
natural selection
b)
artificial selection
c)
selection
d)
variation
4.
When an animal or plant can't change to meet changes in its environment what may happen?
a)
extinction
b)
overpopulation
c)
variation
d)
mutation
5.
Which ones of these organisms are most closely related?
a)
1 and 2
b)
3 and 4
c)
2 and 4
d)
1 and 3
6.
A trait that improves chances of survival and reproduction for a group of individuals in a population.
a)
adaptation
b)
variation
c)
fertilization
d)
zygotes
7.
A group of organisms that can mate to produce fertile offspring.
a)
species
b)
genus
c)
family
d)
kingdom
8.
A process by which inherited traits in a population change over generations.
a)
evolution
b)
artificial selection
c)
adaptation
d)
fertilization
9.
Which of these organisms 1, 2, 3, or 4 has the most in common?
a)
1 and 3
b)
3 and 4
c)
2 and 4
d)
1 and 4
10.
What is the molecule that makes up genes and determines the characteristics of living things?
a)
alleles
b)
centrioles
c)
amino acids
d)
DNA
11.
Asexual reproduction produces offspring that are...
a)
genetically different from the parent
b)
genetically the same as the two parents
c)
genetically the same as their one parent
d)
none of these
12.
This process creates cells that are half of the parents chromosomes.
a)
mitosis
b)
meiosis
c)
gamates
d)
reproduction
13.
This process creates cells identical to the parent cell.
a)
mitosis
b)
meiosis
c)
cytokinesis
d)
telophase
14.
During DNA replication, thymine pairs only with...
a)
guanine
b)
adenine
c)
cytosine
d)
uracil
15.
During DNA replication, guanine pairs with...
a)
thymine
b)
guanine
c)
adenine
d)
cytosine
16.
True or False: asexual reproduction produces offspring genetically identical to each other and requires one parent.
a)
true
b)
false
17.
True or False: asexual reproduction produces offspring genetically identical to each other and requires two parents.
a)
true
b)
false
18.
True or False: Asexual reproduction produces offspring genetically different from each other and requires one parent.
a)
true
b)
false
19.
True or False: Asexual reproduction produces offspring genetically different from each other and requires two parents.
a)
true
b)
false
20.
What is an example of heterogeneous gene pair?
a)
HH
b)
Hh
c)
hh
d)
HHH
21.
Which of the following is an example of a homozygous recessive gene pair
a)
HH
b)
Hh
c)
hh
d)
HHH
22.
Which of the following is an example of a homozygous dominant gene pair?
a)
HH
b)
Hh
c)
hh
d)
HHH
23.
Mendel studied genetics by crossing pea plants that had different traits. He determined that tall plants were dominant over short plants. How did he form this conclusions?
a)
Only tall plants were seen in every plant of every generation
b)
only short plants were seen in every generation
c)
when he counted total plants, he determined there were more short plants than tall plants
d)
When he counted total plants, he determined there were more tall plants than short plants
24.
The number of chromosomes in each body cell of a human is...
a)
23
b)
45
c)
46
d)
92
25.
W stands for?
a)
DNA
b)
chromatid
c)
centramere
d)
chromatin
26.
X represents what?
a)
DNA
b)
centromere
c)
chromatin
d)
chromatid
27.
Y stands for...
a)
chromatin
b)
DNA
c)
chromatid
d)
centromere
28.
Z stands for...
a)
chromosome
b)
chromatid
c)
DNA
d)
centromere
29.
Physical characteristics of an organism are...
a)
alleles
b)
genes
c)
recessives
d)
traits
30.
A segment of DNA that determines a specific trait in a person.
a)
gene
b)
phenotype
c)
chromosome
d)
characteristic
31.
What molecule plays a role in protein synthesis?
a)
RNA
b)
chromosomes
c)
aminos
d)
viruses
32.
Which allele pairs have an allele for a recessive trait?
a)
RR
b)
rr
c)
Rr
d)
both Rr and rr
33.
B = brown b= blue
What is the percentage of Brown eyes in the F1 generation?
What is the percentage of Brown eyes in the F1 generation?
a)
25%
b)
50%
c)
75%
d)
100%
34.
Allele pairs on the outside of a Punnett square represent?
a)
parents
b)
offspring
c)
one parent and one offspring
d)
grandparents
35.
When one amino acid is substituted for another amino acid what is most likely the reason?
a)
replication
b)
transcription
c)
translation
d)
mutation
36.
G = green g = red
If a mother alleles are GG what would her phenotype be?
If a mother alleles are GG what would her phenotype be?
a)
green
b)
red and green
c)
red
d)
gray
37.
B = brown b = blue
What is the percentage of heterozygous dominant for brown eyes?
What is the percentage of heterozygous dominant for brown eyes?
a)
25%
b)
50%
c)
75%
d)
100%
38.
B = brown b = blue
What is the genotype of a homozygous recessive offspring?
What is the genotype of a homozygous recessive offspring?
a)
BB
b)
Bb
c)
bb
d)
BBB
39.
A molecule inside chromosomes that determines the traits of living things.
a)
DNA
b)
Chromatides
c)
Chromatin
d)
Chromosomes
40.
Which one shows the proper order for mitosis?
a)
1
b)
2
c)
3
d)
4
41.
Producing copies of DNA molecules is what process?
a)
replication
b)
transcription
c)
translation
d)
ribosomes
42.
What two steps are involved in making protein?
a)
mutation, replication
b)
replicatioin, translation
c)
transcription, translation
d)
deletion, substitution
43.
A diagram that lists alleles of two parents and shows the allele combinations of offspring.
a)
Punnett Square
b)
Pedigree
c)
flow chart
d)
Venn Diagram
44.
A diagram that shows the occurrence of a genetic trait in several generations of a family.
a)
Punnett Square
b)
Pedigree
c)
Flow Chart
d)
Venn Diagram
45.
How does a virus recognize its host cell?
a)
the cell wall has extensions that fit particular envelope molecules on the virus
b)
the spikes on the host cell recognize attachment molecules in the viral nucleic acid
c)
by the pili on the outside of the cell wall
d)
a protein on the virus matches the shape of a molecule in the plasma membrane of the host
46.
Which of the following is directly responsible for an acquired trait?
a)
genotype
b)
chromosome
c)
environment
d)
phenotype
47.
The process of transferring information from DNA to RNA.
a)
translation
b)
transcription
c)
replication
d)
mutation
48.
The process by which mRNA directs the formation of proteins.
a)
translation
b)
transcription
c)
replication
d)
mutation
49.
True or False: developing new fertilizers for growing corn plants is a form of Biotechnology?
a)
True
b)
False
50.
True or False: Inserting a gene for disease resistance in corn plants is an example of Biotechnology.
a)
True
b)
False
51.
Why are antibiotics ineffective for treating viral infections?
a)
Viruses have different cell walls than bacteria
b)
Viruses have different shapes than bacteria
c)
Antibiotics treat the symptoms and not the cause of the infection
d)
Antibiotics work by interfering with bacterial cell processes
52.
A body cell has 15 homologous pairs of chromosomes. During sexual reproduction, predict how many chromosomes this organism will transmit to its offspring?
a)
15, one chromosome from each homologous pair
b)
30, both chromosomes from each homologous pair
c)
15, both chromosomes from each homologous pair
d)
30. all of the chromosomes shown
53.
What stage of the cell cycle does DNA replicate?
a)
prophase
b)
anaphase
c)
interphase
d)
cytokinesis
54.
What does the base A stand for?
a)
adaptation
b)
adenine
c)
anaphase
d)
guanine
55.
What does the base G stand for?
a)
guanine
b)
genetics
c)
glucose
d)
adenine
56.
What does the C base stand for?
a)
chemical
b)
uracil
c)
chromotid
d)
cytosine
57.
What does the base T stand for?
a)
thymine
b)
cytosine
c)
guanine
d)
adenine
58.
What is this this process in the diagram shown?
a)
RNA
b)
DNA
c)
transcription
d)
translation
100 %
