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WorksheetsBenchmark 3 Review (genetics & evolution)
Total questions: 41
Worksheet time: 30mins
A person who has brown hair is married to a person who also has brown hair. Is it POSSIBLE for them to produce a child with naturally blonde hair?
B=Brown
b=blonde
Yes, if the parents are Bb
Yes, if the parents are bb
Yes, if the parents are BB
No, it is NOT possible
Hair color in humans is an inherited trait. What percentage of offspring will be HETEROZYGOUS if the mom is Bb and the dad is Bb.
25%
50%
75%
100%
A cat is heterozygous for fur color. This means the cat is carrying a dominant allele for brown fur (B) and a recessive allele for white fur (b). What is the cat's phenotype?
White fur
Bb
Brown fur
BB
A rabbit is homozygous for white hair (b). What is the rabbit's genotype?
BB
Bb
white hair
bb
Which of the following best explains what Natural Selection means?
Organisms that have the longest lives.
Organisms that survive long enough to reproduce.
Organisms that are the smartest.
Organisms that are the strongest and fastest.
What does "homozygous for a particular trait" mean?
The organism has the same alleles.
The organism has 2 different alleles.
The organism does not have an allele on their chromosomes.
The organism is missing an allele.
What is the genotype of individual number 10?
Normal = T
deafness = t
TT
Tt
tt
tT
What is the genotype of individual number 2?
Normal = T
deafness = t
TT
Tt
tt
tT
The Savannah (A) is a hybrid domestic cat breed. It is the result of selectively breeding Domestic cats with African Servals (B) in order to produce the signature color markings and large size.
Not all, but many of these Savannah cats are able to successfully reproduce with other Domestic cats.
What could be the most likely long-term effect of this type of selective breeding?
Other cat breeds could evolve to mimic the markings of the serval.
Domestic cats could eventually evolve into servals.
Servals could eventually evolve into domestic cats.
It could change the genetic makeup of the entire domestic cat species.
When a male (XY) and a female (XX) have a child, what is the probability that the offspring will be male?
25%
50%
75%
100%
A species of birds have a beak that is only able to crack open snail shells. The birds depend on the snails for food.
If all the snails went extinct, what would happen to the species of birds?
The bird species will immediately evolve.
The bird will become extinct because it is not adapted to eat other types of food.
The bird species will eat berries instead.
The bird species will reproduce with another species of bird and evolve.
What are Dominant traits ALWAYS seen?
Because dominant traits are represented with a lowercase letter.
Because recessive traits are hidden, & it takes two for them to show.
Because recessive traits are represented with a capital letter.
Because dominant traits only exist in certain organisms.
_______ reproduction requires one parent.
Sexual
Asexual
Bacterial
Evolution
_______ reproduction requires two parents.
Sexual
Asexual
Bacterial
Evolution
If one parent has sickle-cell anemia (hh) and the other parent is a carrier (Hh), what is the probability that their child will have sickle-cell anemia?
25%
50%
75%
100%
Sickle-cell anemia is a genetic disorder of the blood in which the shape of red blood cells is distorted, resulting in a variety of health problems. The allele for normal blood cell production (H) is dominant to the allele for sickle cell production (h).
What is the genotype for someone with the sickle-cell anemia disorder?
HH
Hh
hh
hH
A _______ can be defined as a basic unit of hereditary information that influences a particular trait or group of traits.
Mutation
Sex cell (egg or sperm)
DNA
Gene
Which 2 of the following are examples of genotypes?
Blue eyes
Brown Hair
Bb
XY
Which of the following is an example of a phenotype?
BB
bb
Brown eyes
Loves to play sports
An organism's _______ describes its genetic composition.
DNA
Phenotype
Species
Genotype
An organism's _______ describes its physical appearance or observable characteristics.
DNA
Phenotype
Species
Genotype
Which of the following is true about adaptations?
Adaptations cause animals to go extinct.
Adaptations result from changes that help organisms survive.
Adaptations make life hard for some organisms.
Adaptations do not help the organism survive.
What does co-dominant mean?
A pattern of inheritance where both traits are expressed in the phenotype.
A pattern of inheritance where neither trait is dominant.
A pattern of inheritance where the traits from both parents are blended.
A pattern of inheritance where only one trait is expressed in the phenotype.
What does Incomplete dominance mean?
A pattern of inheritance where only one trait can be seen.
A pattern of inheritance where neither trait is dominant.
A pattern of inheritance where the traits from both parents are blended.
A pattern of inheritance where both traits are seen.
Organisms that have one recessive gene and one dominant gene are considered...
Affected individuals
Homozygous
Carriers
Non-carriers
Squirrels can be either gray or black. However, over the past 100 years, the percent of squirrels that are black has been increasing. Which of the following statements best explains why this is happening?
Gray squirrels are reproducing faster than black squirrels.
Black squirrels are more popular with tourists than gray squirrels.
Black squirrels have a survival advantage over gray squirrels.
Black squirrels reproduce more because they are smarter than the gray squirrels.
Squirrels can be either gray or black. However, over the past 100 years, the percent of squirrels that are black has been increasing. What will happen to the gray squirrels?
The gray squirrels will start reproducing more to catch up with the black squirrels.
The population of gray squirrels will probably increase.
The population of gray squirrels will stay the same.
The population of gray squirrels will probably decrease.
Fossils could be used as evidence of evolution because...
The fossils found in lower layers of rock are more adapted than those found in higher layers.
Fossils found in higher layers of rock are older than those found in the lower layers of rock.
Fossils of common ancestors have been found in the lower rock layers.
Fossils of current species have been found in all layers of the fossil record.
Explain why the beak shape of these finches all look different.
Each beak shape helps the birds to produce different songs.
Each beak shape is designed to build a different type of nest.
Each beak shape acts as a way for the bird to fight of predators.
Each beak shape is an adaptation to a specific source of food.
An arctic hare changes from brown in the summer to white in the winter. How does the change in fur color help the arctic hare?
It protects their skin from sunlight.
It lowers their body temperature.
It makes them less visible to predators.
It allows them to hibernate in the winter.
During the Industrial Revolution in England, pollution caused tree trunks to become covered in black soot. Which of the following is true of the Peppered Moths:
The Peppered Moths eventually turned white against the black trees.
The Peppered Moths adapted to their environment by turning black.
The Peppered Moths left England and found a new place to live.
The Peppered Moths that turned black were more easily seen by predators because they were no longer camouflaged.
Which of the following means the gradual change in a species over time.
Diversity
Variation
Genetics
Evolution
Which of the following structures are found in living organisms, but have no purpose today.
Homologous structures
Analogous structures
Vestigial structures
Homozygous alleles
Look at the diagram above, why is Fossil D only found in one layer?
This layer was the thinnest layer.
Because fossil C ate all of fossil D.
They went extinct with the dinosaurs.
Conditions were only favorable for Fossil D to survive during that time period.
Look at the diagram above, which fossil would be considered the oldest?
C
F
E
A
Which example describes a behavioral adaptation?
A bird builds its nest in the ash near a volcano.
A whale has the ability to hold its breath for 20 minutes.
A fox’s hair is white in the winter and brown in the summer.
A monkey has long arms that allow it to swing from one branch to another.
A lizard species mostly eats fruit from a particular kind of tree. If these fruit trees go extinct, which type of lizard will survive?
Lizards that can climb other trees.
Lizards that can eat other types of food.
Lizards that can produce more offspring.
Lizards that can reproduce faster.
Why do turtles bury their eggs in holes that they dig on the beach?
To keep the eggs covered with water
To keep the eggs away from the sunlight
To protect the eggs from predators
To provide the eggs with nutrients
Which of the following structures have the SAME structure, but DIFFERENT function?
Homologous structures
Analogous structures
Vestigial structures
Homozygous alleles
A bat's wing and an insect's wing are examples of...
Homologous structures
Analogous structures
Vestigial structures
Homozygous alleles
The appendix found in humans is an example of a...
Homologous structure
Analogous structure
Vestigial structure
Homozygous structure
