NEW
Font size
S
M
L
XL
WorksheetsUnit 3 & 4 Review
Total questions: 65
Worksheet time: 1hrs 1mins
Name
Class
Date
1.
B=brown eyes
b= blue eyes
What is true about two brothers that have brown eyes?
One has genotype BB the other Bb.
b= blue eyes
What is true about two brothers that have brown eyes?
One has genotype BB the other Bb.
a)
they have same phenotype and genotype
b)
they have different genotypes and phenotypes
c)
they have same phenotype but different genotypes
d)
they have same genotype but different phenotypes
2.
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
a)
25%
b)
50%
c)
75%
d)
100%
3.
What does heterozygous mean?
a)
An organism that has the same genes for a trait (TT or tt)
b)
An organism that has different genes for a trait (Tt)
c)
When neither gene is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
4.
If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?
a)
100% Tt
b)
50% Tt, 50% tt
c)
75%Tt, 25%tt
d)
25%TT, 50%Tt, 25%tt
5.
This is an example of what?
a)
Complete dominance
b)
Incomplete dominance
c)
Codominance
d)
None of the above
6.
If T=Tall & t=short, what is the genotypic ratio?
a)
1:3
b)
3:1
c)
1:2:1
d)
2:2
7.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
8.
A corn plant heterozygous for tall sprouts mates with a corn plant with short sprouts. If tall sprouts are dominant, how many different phenotypes are possible in the offspring?
a)
1
b)
2
c)
3
d)
4
9.
If a Homozygous red snapdragon and a Heterozygous pink snapdragon were crossed - what percentage of the offspring would be homozygous white?
a)
0%
b)
25%
c)
50%
d)
75%
10.
Snapdragon flowers come in red, pink and white. What type of inheritance is this?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
11.
A heterozygous yellow pea plant's genotype would be:
a)
YY
b)
yy
c)
Yy
d)
Yg
12.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
13.
Which of the following cell types is formed by meiosis?
a)
muscle cells
b)
skin cells
c)
sperm cells
d)
blood cells
14.
Which best describes the process shown?
a)
mutation in which the DNA content of the gene is ltered
b)
segregation of sister chromatids
c)
condensation and segregation of the alleles
d)
crossing-over which alleles are exchanged
15.
What is one advantage of sexual reproduction?
a)
offspring are identical to parents
b)
offspring are resistant to viruses
c)
offspring are born live, rather thna from eggs
d)
offspring inherit a wider variety of genetic information
16.
How many times in meiosis does the cell divided?
a)
2
b)
4
c)
3
d)
1
17.
What phase is shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
18.
When two haploid sex fuse together during fertilization they become ______________
a)
haploid cells
b)
meiosis
c)
mitochondria
d)
diploid cells
19.
The sex of an offspring is determined by ______________________.
a)
the mother
b)
the father
c)
the mother and the father
d)
by the environment
20.
Incomplete dominance means that the traits are
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
21.
Term for homozygous organisms that display two dominant phenotypes at the same time
a)
codominance
b)
incomplete dominance
c)
multiple alleles
d)
linked genes
22.
Red/green color blindness is a recessive trait. A woman who is a carrier for this allele marries a normal-vision male. What is the probability that they will have a child who is color blind?
a)
1/4
b)
1/2
c)
3/4
d)
1
23.
W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
a)
none
b)
3/4
c)
1/2
d)
all
24.
What is a phenotype?
a)
The expression of a trait; what you see.
b)
refers to the genetic makeup of an individual
c)
An organism that has the same genes for a trait (ex. TT or tt)
d)
the passing of traits from parent to offspring
25.
What does heterozygous mean?
a)
An organism that has the same genes for a trait (TT or tt)
b)
An organism that has different genes for a trait (Tt)
c)
When neither gene is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
26.
The inherited combination of alleles is known as the offspring's
a)
heredity
b)
phenotype
c)
genotype
d)
redigree
27.
An organism's appearance is known as its
a)
heredity
b)
phenotype
c)
genotype
d)
pedigree
28.
Sex cells are produced through the process of
a)
mitosis
b)
cytokinesis
c)
binary fission
d)
meiosis
29.
What animal did Darwin observe on the Galapagos Islands
a)
Finches
b)
Turtles
c)
Deer
d)
Fish
30.
When an organism completely dies out, it is called.....
a)
Adaption
b)
Extinction
c)
Fossilization
d)
Mutation
31.
The gradual change in species over time is...
a)
Evolution
b)
Nucleotide
c)
Adaptation
d)
Natural Selection
32.
To adjust to a changing environment
a)
Mutation
b)
Adapt
33.
Darwin wrote that organisms with traits that are best suited to the environment will ________________
a)
increase in number
b)
become extinct
34.
What characteristic did Darwin observe about the finches on the Galapagos Islands?
a)
Their feathers
b)
Genotypes
c)
Their beaks
d)
Their body sizes
35.
Another word for adapt is ____________.
a)
change
b)
create
36.
Which term refers to the process by which individuals that are better suited to the environment survive and reproduce therefore passing down their genes to their offspring?
a)
Evolution
b)
Variation
c)
Adaptation
d)
Natural Selection
37.
The white feathers of a snowy owl allow it to blend in with its environment during the winter months (snow). This is an example of ________________
a)
Species
b)
Environmental Change
c)
Adaptation
d)
Variation
38.
Darwin referred to this as survival of the fittest. Over time, it results in changes in the inherited characteristics of a population because organisms with adaptations that make them fit for their environment will survive and reproduce better than those without favorable traits.
a)
Natural Selection
b)
Genetic Variation
c)
Survival of the Fittest
39.
Genetic differences between organisms of the same species
a)
Variation
b)
Adaptation
c)
Behavior
d)
Environment
40.
What is the advantage of having different shaped beaks?
a)
To look different from other species.
b)
To be able to eat the food readily available in the environment.
c)
To protect itself against predators.
d)
To protect itself against prey.
41.
The struggle for existence against other members of an organisms species is
a)
Competition
b)
Natural Selection
c)
gene flow
d)
genetic drift
42.
Darwin's expedition took how many years?
a)
3
b)
4
c)
5
d)
6
43.
Darwin's expedition was called the Voyage of the _________.
a)
Titanic
b)
Beagle
44.
Remains of ancient organisms are called
a)
Extinctions
b)
Fossils
c)
Mutations
d)
Variations
45.
Which of the following is NOT a factor that affects the process of natural selection?
a)
Overpopulation
b)
Fossils
c)
Competition
d)
Variations
46.
Who was the naturalist that traveled the world to study plants and animals?
a)
Albert Einstein
b)
Charles Darwin
c)
Charles Barkley
d)
Isaac Newton
47.
structures or organs that are thought to have been functional in an ancestor but are reduced and non-functional in a descendant.
a)
Vestigal Structures
b)
Homologous Structures
c)
Analogous Structures
48.
A well-tested concept that explains a wide range of observations is called a(an):
a)
hypothesis
b)
experiment
c)
cause and effect
d)
scientific theory
49.
A group of similar organisms that can mate with each other and produce fertile offspring is called a species.
a)
True
b)
False
50.
Zoologist and Botanist who began the work on suggesting that organisms have a common ancestor.
a)
Charles Darwin
b)
Erasmus Darwin
c)
Gregor Mendel
51.
developed the binomial system of nomenclature a two part naming system for naming organisms.
a)
Carlous Linnaeu
b)
Mendal
c)
Charles Darwin
d)
Carlous Linnaeus
52.
This organism is an ancient....
a)
reptile
b)
fish
c)
whale
d)
amphibian
53.
How the animal/organism moved and/or body worked.
If the animal/ organism is related to other organisms that lived in different environments. For example biological evolution: the change over time in populations of related species.
What types of food the organisms ate {For Example: Organisms with flat teeth were mostly herbivores{plant eating animals}.
Most importantly how old is the organism {For example: What time period is the organism from}.
If the animal/ organism is related to other organisms that lived in different environments. For example biological evolution: the change over time in populations of related species.
What types of food the organisms ate {For Example: Organisms with flat teeth were mostly herbivores{plant eating animals}.
Most importantly how old is the organism {For example: What time period is the organism from}.
a)
things we learned from evolution
b)
things we learning from fossils
c)
things we learn by eras and eons
d)
things we learned by studying genetics
54.
When we created our own fossils in class we were creating a type of ...
a)
Carbonization
b)
Mineralization
c)
Molds and Casts
d)
Trace Fossils
55.
This is a rare case in which the animal itself can be preserved with all its materials intact. This can occur in tar pits{ whooly mammoths, saber tooth cats}. Humans have been found in places such as bogs and mountain tops perfectly preserved.
a)
Original Material
b)
Trace Fossils
c)
Molds and Casts
56.
Process used with dating rocks by using radioactive decay.
Radioactive decay: when isotopes of an atom{element} go from unstable to stable.
Radioactive decay: when isotopes of an atom{element} go from unstable to stable.
a)
Relative Age Dating
b)
Absolute Age Dating
c)
Diving Time
d)
Gelogical Time Scale
57.
Structural, Behavioral, and Functional
a)
Camouflage
b)
Adaptions
c)
Variations
d)
Mimicry
58.
Hungry- Hungry Evolution was showing us how?
a)
Different species adapt to certain circumstances
b)
How animals are best suited to survive in their enviroments
c)
How species survive
d)
How a species can become extinct when food supplies are low
59.
what does this graph show?
a)
Species going extinct
b)
Species going extinct through interaction with humans
c)
Species going extinct as the population of humans grows larger
60.
In the watch Mojo video concerning extinction what organism was number 1 on the countdown?
a)
Sea Cow
b)
Tasmanian Tiger
c)
Dodo Bird
d)
Passenger Pigeon
61.
The SciShow video in class provided evidence for the existence of this once thought mythical species of humans
a)
hobbits
b)
Bigfoots
c)
Kids that pass Mr. G class with an A
d)
All of the above
62.
What is the age of the oldest fossils that we have discovered?
a)
5.5 billions years old
b)
4.0 billion years old
c)
3.5 billion years
d)
10 billion years
63.
Evolution is what type of process?
a)
Gradual
b)
Speedy
c)
Sudden
d)
Slow
64.
This concept makes the fossil record easy to dispute
a)
Missing links
b)
vestigial structures
65.
Zoe the protozoan project in class demostrated what
a)
evolution
b)
adaptation
c)
Natural Selection
d)
All of the above
Reset
