Biology II Review
How prepared are you for the final exam? Answer these questions to find out.
- 1.
Which of the following pairs would be found in a DNA molecule?
- A.
Adenine - guanine
- B.
Guanine - cytosine
- C.
Cytosine - adenine
- D.
Guianine - thymine
Correct Answer
B. Guanine - cytosine -
- 2.
The backbone of a DNA molecule is made of which 2 components?
- A.
Deoxyribose sugars and phosphate molecules
- B.
Deoxyphosphates and glucose
- C.
Ribose sugars and phosphate
- D.
Deoxyribose sugars and nitogen bases
Correct Answer
A. Deoxyribose sugars and phosphate molecules -
- 3.
The pairing of ______________ is the key feature that allows DNA to be copied.
- A.
Nucleotides
- B.
Nitrogen bases
- C.
A protein molecule
- D.
The genetic material
Correct Answer
B. Nitrogen bases -
- 4.
Which series is arranged in order from largest to smallest in size?
- A.
Cell, nucleotide, nucleus, DNA, chromosome
- B.
Nucleotide, chromosome, cell, DNA, nucleus
- C.
Cell, nucleus, chromosome, DNA, nucleotide
- D.
Chromosome, nucleus, cell, DNA, nucleotide
Correct Answer
C. Cell, nucleus, chromosome, DNA, nucleotide -
- 5.
X-rays, ultraviolet light and radioactive substances that can change the chemical nature of DNA are classified as
- A.
Mutations
- B.
Hydrolytic enzymes
- C.
Growth regulators
- D.
Metamorphic molecules
Correct Answer
A. Mutations -
- 6.
The type of inheritance shown when a red flowering plant is crossed with a white flowering plant and only pink flowering plants are produced is
- A.
Inbreeding
- B.
Incomplete dominance
- C.
Polygenic inheritance
- D.
Codominance
Correct Answer
B. Incomplete dominance -
- 7.
This pedigree represents the sex linked trait hemophilia.What is the genotype of person 5?
- A.
XHXH
- B.
XHXh
- C.
XHY
- D.
XhY
Correct Answer
B. XHXh -
- 8.
What is the relationship between person 1 and person 7?
- A.
Father and Son
- B.
Mother and Son
- C.
Grandfather and Grandson
- D.
Grandfather and Grandaughter
Correct Answer
C. Grandfather and Grandson -
- 9.
What are the chances that person 8 will have hemophilia?
- A.
100%
- B.
50%
- C.
25%
- D.
0%
Correct Answer
D. 0% -
- 10.
Person 5 ___________________________ hemophilia.
- A.
Has the disease
- B.
Is a carrier of
- C.
Does not have the gene for
- D.
Cannot tell
Correct Answer
B. Is a carrier of -
- 11.
If a female fruit fly heterozygous for red eyes (XRXr) crossed with a white eyed male (XrY), what percent of their offspring would have white eyes?
- A.
0%
- B.
25%
- C.
50%
- D.
100%
Correct Answer
C. 50% -
- 12.
Because the gene for red-green colorblindness is located on the X chromosome, it is normally not possible for a
- A.
Color blind father to pass the gene on to his son
- B.
Color blind father to pass the gene on to his daughter
- C.
Carrier mother to pass the gene on to her son
- D.
Carrier mother to pass the gene on to her daughter
Correct Answer
A. Color blind father to pass the gene on to his son -
- 13.
A phenotype that results from a dominant allele must have at least ________ dominant allele(s) present in the parent.
- A.
One
- B.
Two
- C.
Three
- D.
Four
Correct Answer
A. One -
- 14.
Within a decade of the introduction of a new insecticide, nearly all of the descendants of the target pests were immune to the usual sized dose. The most likely explanation for this immunity to the insecticide is that
- A.
Eating the insecticide caused the bugs to become resistant to it
- B.
Eating the insecticide caused the bugs to become less resistance to it
- C.
It destroyed organims that cuase disease in the insects, thus allowing them to live longer
- D.
The pests have developed adaptations to the insecticide
Correct Answer
D. The pests have developed adaptations to the insecticide -
- 15.
Structures that have a similar evolutionary origin and structure that are adaped for different purposes, such as a bat wing and a human arm, are called______________________________.
- A.
Homozygous structures
- B.
Homologous structures
- C.
Analgous structures
- D.
Embryological structures
Correct Answer
B. Homologous structures -
- 16.
One population of squirrels live on the north rim of a canyon and a second population of squirrels lives on the south rim of the same canyon. After hundreds of years, these two populations are recognized as different populations. Which of the following is the best explanation for this?
- A.
The two populations are geographically isolated
- B.
The two populations have very different mating habits
- C.
The north rim of the canyon has a harsher climate
- D.
The north rim of the canyon has less food available
Correct Answer
A. The two populations are geographically isolated -
- 17.
Natural selection can best be defined as the
- A.
Survival of the biggest and strongest organims in a population
- B.
Elimination of the smallest organisms by the biggest organisms
- C.
Survival and reproduction of the organisms that occupy the largest area
- D.
Survival and reproduction of the organisms that are genetically best adapted to the environment
Correct Answer
D. Survival and reproduction of the organisms that are genetically best adapted to the environment -
- 18.
The theory of continental drift hypothesizes that Africa and South America slowly drifted apart after once being a single landmass. The monkeys on the two continents, although similar, show numberous genetic differences. Which factor is probably the most important in maintaining these differences?
- A.
Fossil records
- B.
Geographic isolation
- C.
Comparitave anatomy
- D.
Comparative embryology
Correct Answer
B. Geographic isolation -
- 19.
Upon close examination of the skeleton of an adult python, a pelvic girdle and leg bones can be observed. These features are an example of
- A.
Artificial selection
- B.
Homologous structures
- C.
Vestigial structures
- D.
Comparative embryology
Correct Answer
C. Vestigial structures -
- 20.
Which of the following lines of evidence for evolution is indirect?
- A.
Bacteria adapting to antibiotics
- B.
Observed allele frequency changes
- C.
Fossils
- D.
All of thes
Correct Answer
C. Fossils -
- 21.
When an organism becomes better suited to its environment, it is known as
- A.
Commensalism
- B.
Isolation
- C.
Camouflage
- D.
Adaptation
Correct Answer
D. Adaptation -
- 22.
Natural selection is also known as
- A.
Overpopulation
- B.
Artificial selection
- C.
Survival of the fittest
- D.
Genetic interaction
Correct Answer
C. Survival of the fittest -
- 23.
Which type of selection favors the average individual?
- A.
Stabilizing
- B.
Disruptive
- C.
Directional
- D.
None of these
Correct Answer
A. Stabilizing -
- 24.
A system for naming species in which two words are used to name an organism is
- A.
Fan diagramming
- B.
Cladistics
- C.
Dichotomous keying
- D.
Binomial nomenclature
Correct Answer
D. Binomial nomenclature -
- 25.
A heterotrophic eukaryote associated with the decomposition of dead organisms is
- A.
Bacterium
- B.
Herbivore
- C.
Fungus
- D.
Protist
Correct Answer
C. Fungus -
- 26.
The science of grouping and naming organisms is
- A.
Classification
- B.
Phylogeny
- C.
Nomenclature
- D.
Taxonomy
Correct Answer
D. Taxonomy -
- 27.
Water is lost to the abiotic parts of the biosphere from the biotic parts by the process of
- A.
Precipitation
- B.
Photosynthesis
- C.
Transpiration
- D.
Infiltration
Correct Answer
C. Transpiration -
- 28.
Nitrogen is released to the abioitic parts of the biosphere from the processes of death and
- A.
Decay by bacteria
- B.
Infiltration of groundwater
- C.
Runoff
- D.
Lightening in storm clouds
Correct Answer
A. Decay by bacteria -
- 29.
Some birds are known as honey guides because they may be followed by humans to beehives. When the humans take honey from the hives, the birds are able to feast on the honey and bees, too. this type of relationship can best be described as
- A.
Commensalism
- B.
Parasitism
- C.
Mutualism
- D.
Symbiosis
Correct Answer
C. Mutualism -
- 30.
All of the individuals of the same species in a given area form a
- A.
Niche
- B.
Ecosystem
- C.
Phenotype
- D.
Gene pool
Correct Answer
D. Gene pool -
- 31.
Sea stars live in saltwater ecosystems. Some species live in shallow tidal pools. This is a description of the _____ of sea stars.
- A.
Niche
- B.
Habitat
- C.
Community
- D.
None of these
Correct Answer
B. Habitat -
- 32.
An ecologist who studies how several species in an area interact is interested in the biological organization called
- A.
Organism
- B.
Population
- C.
Community
- D.
Ecosystem
Correct Answer
C. Community -
- 33.
In a food web, what happens to the energy as it moves from the producer to the 1st order consumer and then to the 2nd order consumer?
- A.
Energy increases
- B.
Energy decreases
- C.
Energy decreases and then increases
- D.
Increases or decreases depending on the organism
Correct Answer
B. Energy decreases -
- 34.
The relationship between the hawk and the snake can best be described as
- A.
Predator- prey
- B.
Scavenger - carrion
- C.
Parasite - host
- D.
Consumer - producer
Correct Answer
A. Predator- prey -
- 35.
Why is the snake considered a second order consumer?
- A.
It consumes the primary consumer
- B.
It consumes the tertiary consumer
- C.
It eventually is decomposed
- D.
It consumes the producers
Correct Answer
A. It consumes the primary consumer -
- 36.
Carbon dioxide leaves the atmosphere through
- A.
Photosynthesis
- B.
Burning fossil fuels
- C.
Respiration
- D.
Transpiration
Correct Answer
A. Photosynthesis -
- 37.
A population that grows until it reaches its carrying capacity usually has the shape of a
- A.
I
- B.
J
- C.
S
- D.
M
Correct Answer
B. J -
- 38.
Density independent factors are limiting factors whose effects are
- A.
Confined to the habitat of the population
- B.
Determined by the degree of competition for resources
- C.
Not influenced by population densities
- D.
Determined by the difference between birthrate and population density
Correct Answer
C. Not influenced by population densities -
- 39.
For a particular species, the carrying capacity is the maximum number of individual organisms that
- A.
The species could reach in a given time period if all the offpring survive and reproduce
- B.
Could be supported by a given environmental indefinately
- C.
Are in their post reproductive years
- D.
Could be supported by an environment over a period of one year
Correct Answer
A. The species could reach in a given time period if all the offpring survive and reproduce -
- 40.
Unrestricted populations of organisms experience
- A.
Exponential growth
- B.
Linear growth
- C.
Fertility
- D.
Biotic growth
Correct Answer
A. Exponential growth -
- 41.
Population control factors whose effects increase as the size of the population increases are
- A.
Abiotic factors
- B.
Density dependent factors
- C.
Limiting factors
- D.
Density independent factors
Correct Answer
B. Density dependent factors -
- 42.
A trait controlled by four alleles is said to have
- A.
Homologous alleles
- B.
Autosomes
- C.
Hybridization
- D.
Multiple alleles
Correct Answer
D. Multiple alleles -
- 43.
The blood types A, B, AB and O are the result of _______________ inheritance.
- A.
Multiple allelic
- B.
Polygenic
- C.
Sex linked
- D.
Simple dominant
Correct Answer
A. Multiple allelic -
- 44.
A child is diagnosed with a rare genetic disorder. Neither parent has the disorder. How might the child have inherited this disorder?
- A.
The disorder is dominant and was carried by a parent
- B.
The disorder is recessive and carried by both parents
- C.
The disorder is sex linked and inherited only from the father
- D.
The disorder could occur only as a mutation in the child because neither parent had the disease.
Correct Answer
B. The disorder is recessive and carried by both parents -
- 45.
Most human genetic disorders are caused by the expression of
- A.
Recessive alleles
- B.
Two dominant alleles
- C.
One dominant allele
- D.
Sex-linked heredity
Correct Answer
A. Recessive alleles -
- 46.
Which of the following genetic disorders can be detected by karyotyping?
- A.
Downs Syndrome
- B.
Tay-Sachs disease and phenylketonuria
- C.
Hemophilia and cystic fibrosis
- D.
Klinefelter syndrome and sickle cell anemia
Correct Answer
A. Downs Syndrome -
- 47.
A man heterozygous for blood type A marriers a woman heterozygous for blood type B. The chance that their first child will have blood type O is..
- A.
O%
- B.
25%
- C.
50%
- D.
100%
Correct Answer
B. 25% -
- 48.
Both hemophilia and red green color blindness are
- A.
Inherited only from the mother
- B.
Located on the Y chromosome
- C.
Caused by a dominant gene
- D.
Sex linked conditions
Correct Answer
D. Sex linked conditions -
- 49.
Natural processes such as speciation and gradualism provide the genetic basis for
- A.
Evolution
- B.
Spontaneous generation
- C.
Biogenesis
- D.
Sexual reproduction
Correct Answer
A. Evolution -
- 50.
An ecologist who studies how several species in an area interact among each other and with the abiotic parts of the environment is interested in the biological organizational level called
- A.
Organism
- B.
Population
- C.
Community
- D.
Ecosystem
Correct Answer
D. Ecosystem -
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 18, 2022Quiz Edited by
ProProfs Editorial Team -
May 17, 2010Quiz Created by
Jdionne
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