Basic concepts: basic biological themes, hierarchy of organisms, diversity and domains, genetics and evolution, adaptations, fossil record and early life, geology, reproduction, genome and speciation.
Disclaimer: While every reasonable effort is made to ensure that the information provided is accurate, no guarantees for the currency or accuracy of information are made. It takes several proof readings and rewrites to bring the quiz to an exceptional level. If you find an error, please contact me as soon as possible. Please indicate the question description because server may randomize the questions and answers.
Go to: Midterm II | Midterm III | Final Exam
Biology 205 (BIOL 205-UCAL) Midterm I
Congratulations - you have completed Biology 205 (BIOL 205-UCAL) Midterm I.
You scored %%SCORE%% out of %%TOTAL%%. With incorrect multiple attempts your score is %%PERCENTAGE%%
Your performance has been rated as %%RATING%%
Question 1 |
According to the following table, what are the allele frequencies in this gene pool (last row in the table, but remember, there are only two frequencies)?
Table 1: Gene pool of the original rose plants.Red is dominant and White is recessive.
A | R = 0.20 and r = 0.80 |
B | R = 0.04 and r = 0.96 |
C | R = 0.63 and r = 0.37 |
D | R = 0.80 and r = 0.20 |
E | R = 0.96 and r = 0.04 |
F | R = 0.37 and r = 0.63 |
Question 2 |
A | It is the process in which alleles are randomly selected for fertilization. |
B | It is the process in which RNA copy the DNA sequences and reproduce them by binding to proteins. |
C | It the process in which natural selection either modify, delete or replicate alleles from genes. |
D | It a process in which alleles from one population is transferred to another as a result of movement of individuals or gametes. |
Question 3 |
A | Ideas and concepts taken out of the book: Principles of Geology by Charles Leyell. |
B | The observation he made that members of a population often vary in their inherited traits. |
C | The observation he made that all species will only produce offspring than the environment can support. |
D | Domesticated species like dogs in which humans have used artificial selection to produce animals with desirable traits. |
Question 4 |
A | I. Biology II. genetic drift |
B | I. Ecology II. natural selection |
C | I. Biology II. natural selection |
D | I. Biology II. evolution |
E | I. Ecology II. genetic drift |
Question 5 |
A | Theory can not be disproved with new evidence but hypothesis can be because hypothesis is a "working theory". |
B | Theory is similar to hypothesis but it covers a specific area of the subject than a hypothesis. |
C | Theory is used to describe fundamental principles of science while a hypothesis is used to describe first-order observable properties. |
D | Theory is similar to hypothesis but it covers a broader scope of the subject than a hypothesis. |
E | Theory and hypothesis are two terms that can be used interchangeably (same or very similar meaning). |
Question 6 |
On 26 December 2004, undersea megathrust earthquake West of Sumatra, Indonesia resulted in a Tsunami. The waves wiped out a population of cattle (cows) on the Eastern part of Sri Lanka. However, out of 2000 cattle, about 150 were able to escape death. Since the 2004 Tsunami, the cattle population has rebounded back to almost its original level. What is the major impact on the gene pool of the new generation of cattle after the Tsunami in this particular region?
A | The population is most likely experiencing bottleneck effect, where there is a drastic reduction in genetic variations. |
B | The new population most likely experiencing large scale genetic mutations due to limited partners for mating. |
C | The new population most likely will not survive for a long period without a gene flow between themselves and another unrelated population. |
D | The population is most likely underwent extremely fast evolution. |
E | The population most likely benefited from this catastrophic event because with reduce number of individuals, there is less competition for mating. |
Question 7 |
A | cell, molecule, organ system, organ, population, tissue, organism, ecosystem, community |
B | cell, molecule, organ system, organ, tissue, population, organism, ecosystem, community |
C | molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem |
D | molecule, tissue, cell, organ, organ system, organism, population, community, ecosystem |
E | ecosystem, population, organ system, cell, community, molecule, organ, organism, tissue |
Question 8 |
A | The main statement in this question itself is the evidence that we all evolved from Africa. |
B | Your great great (great....) grand parents must be nonhuman primates. |
C | nonhuman primates must have exchanged DNA with humans millions of years ago. |
D | These relationships between human and nonhuman primates demonstrate unity among all living organisms. |
Question 9 |
A | I. prokaryotes II. 3.5 billion |
B | I. eukaryotes II. 3.5 billion |
C | I. prokaryotes II. 4.3 billion |
D | I. eukaryotes II. 4.3 billion |
Question 10 |
A | Yes, because we can extrapolate the history from the type of sediments. |
B | Yes, because we can use radiometric dating of the sediments. |
C | No, because we use fossils record for age determination. |
D | No, because there is no useful evidence for the history without living or non-living (abiotic) organisms within the rock strata. |
Question 11 |
A | stromatolites |
B | eukaryotic cells |
C | bacteria |
D | fungi |
Question 12 |
A | RNAs |
B | homeotic genes |
C | mRNAs |
D | DNAs |
Question 13 |
A | Similarity in characteristics caused by one dominant allele is known as analogy, while similarity in characteristics caused by two recessive alleles known as homology. |
B | Similarity in characteristics caused by one dominant allele is known as homology, while similarity in characteristics caused by two recessive alleles known as analogy. |
C | Similarity in characteristics caused by convergent evolution is known as analogy, while similarity in characteristics caused by is sharing a common ancestor known as homology. |
D | Similarity in characteristics caused by convergent evolution is known as homology, while similarity in characteristics caused by is sharing a common ancestor known as analogy. |
Question 14 |
A | A population in which whose members are genetically related to each other. |
B | A group of populations whose members have the potential to interbreed. |
C | A group of organisms whose members have the potential to reproduce either by sexual or asexual reproduction. |
D | A group of organisms living in the same community. |
Question 15 |
A | Prezygotic barriers |
B | Neither because natural selection do not act at this level of life. |
C | Postzygotic barriers |
D | Either because it is all depend on the type of organisms and their living environment. |
Question 16 |
A | ...the outer layer. |
B | ...the mantle. |
C | ...the crust. |
D | ...the outer core. |
Question 17 |
A | ....asxually reproducing populations. |
B | ...very large populations. |
C | ...sexually reproducing populations. |
D | ...genetically isolated populations. |
E | ...geographically isolated populations. |
F | ...small populations. |
Question 18 |
A | Hypothalamus |
B | Appendix |
C | Nails |
D | Spinal cord |
Question 19 |
A | All the living organisms and their interaction among each other. |
B | All the organisms in a specific area along with nonliving factors with which they interact. |
C | An isolated system of organisms in which a specific population lives. |
D | A specific group of species, such as humans, living under a specific area and their interactions among living organisms. |
E | A specific area of study used to derive a hypothesis or a theory. |
Question 20 |
A | Eukaryotic cells are usually unicelluar and thought to be responsible for early life on Earth while Prokaryotics cells evolved later in the biological evolution. |
B | Eukaryotic cells are specialized cells while Prokaryotics cells can be specialized into any type of cell. |
C | Prokaryotics cells are the most common type of cells in the living world that made up of plants, animals and fungi. The Prokaryotics cells are only found in bacterias. |
D | Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. |
Question 21 |
A | Metamorphic rocks |
B | Sedimentary rocks |
C | Punk rocks |
D | Clastic rocks |
E | Igneous rocks |
Question 22 |
A | scientific process. |
B | inductive reasoning. |
C | deductive reasoning. |
D | first-order reasoning or first order analysis. |
E | experimental process. |
Question 23 |
A | ...prokaryotic cells with mostly macroscopic muticellular organisms. |
B | ...eukaryotic cells with mostly macroscopic unicellular organisms. |
C | ...prokaryotic cells with mostly macroscopic unicellular organisms. |
D | ...eukaryotic cells with mostly macroscopic multicellular organisms. |
E | ...eukaryotic cells with mostly microscopic unicellular organisms. |
F | ...prokaryotic cells with mostly microscopic unicellular organisms. |
Question 24 |
A | organ |
B | DNA |
C | population |
D | individual |
E | community |
Question 25 |
A | bottleneck effect |
B | genetic drift |
C | genetic shift |
D | adaptation |
E | evolution |
Question 26 |
A | Nuclear energy from the remaining elements within the gas cloud from the original nebula. |
B | Nuclear energy released from binding of monomers. |
C | Thermal energy from hydrothermal vents. |
D | Thermal energy from the sun. |
E | Frictional energy generated by plate tectonics in the deep sea. |
Question 27 |
A | 2pq |
B | pq |
C | 2q |
D | 2p |
E | p2 |
Question 28 |
A | The total collection of genes in a species at any one time. |
B | The total collection of genes in a kingdom at any one time. |
C | The total collection of genes in a family at any one time. |
D | The total collection of genes in a population at any one time. |
Question 29 |
A | Organisms study. |
B | A community study. |
C | An ecosystem study. |
D | A population study. |
Question 30 |
A | It is the process in which organisms evolve. |
B | It is an inherited characteristic that enhances an organism's ability to survive and reproduce in a particular environment. |
C | It is the process which an organism enhances the probability of survival through acquired characteristics. |
D | It is the process in which the new genes are produced in order to survive in a changing environment. |
Question 31 |
A | Organelle |
B | Cell |
C | DNA |
D | Nucleus |
E | Nucleotide |
F | Bacteria |
Question 32 |
A | 2.1 bya |
B | 1.5 bya |
C | 4.6 bya |
D | 3.5 bya |
Question 33 |
A | Introduction of new species |
B | Genetic drift |
C | Gene flow |
D | Mutations |
Question 34 |
A | It is the process in which one species splits into two or more species. |
B | It is the process in which two interbreeding individuals produce a zygote. |
C | It is the process in which DNAs react with other biochemicals to produce life. |
D | It is a process in which the new species are created with completely independent (100% different) characteristics from that of the original species. |
Question 35 |
A | Gondwanaland |
B | Pangaea |
C | Diablo |
D | Laurasia |
Question 36 |
A | It is a conceptual model developed by a scientist before a research project is undertaken. |
B | It is a proposed explanation for a set of observations. |
C | It is a statement of facts supported by a large body of evidence. |
D | It is an idea which is still not been proven with a body of evidence. |
Question 37 |
A | ...the origins of life. |
B | ...the origins of life plus how new species adapt and evolve. |
C | ...genetic variation caused by mass extinctions and repopulation cycles. |
D | ...how new species adapt and evolve. |
Question 38 |
Modified from: http://upload.wikimedia.org/wikipedia/commons/8/84/Selectiontypes-n0_images.png
A | I. Directional selection II. Stabilizing selection III. Disruptive selection |
B | I. Disruptive selection II. Directional selection III. Stabilizing selection |
C | I. Disruptive selection II. Stabilizing selection III. Directional selection |
D | I. Stabilizing selection II. Directional selection III. Disruptive selection |
E | I. Directional selection II. Disruptive selection III. Stabilizing selection |
F | I. Stabilizing selection II. Disruptive selection III. Directional selection |
Question 39 |
According to the following table, what are the two possible number of total alleles for Rr in this gene pool?
Table 1: Gene pool of the original rose plants.Red is dominant and White is recessive.
A | 61 (R) + 131 (r) |
B | 192 (R) + 192 (r) |
C | 131 (R) + 61(r) |
D | 61 (R) + 323 (r) |
E | 323 (R) + 61 (r) |
Question 40 |
A | Human limb and whale flipper. |
B | Human thumb and chimpanzee arm. |
C | Bat wing and insect wing. |
D | Oak leaf and oak root. |
E | Oak leaf and maple leaf. |
Question 41 |
A | water |
B | carbon dioxide |
C | ammonia |
D | nitrogen |
E | hydrogen |
F | oxygen |
Question 42 |
A | Polyploidy speciation |
B | Geographic speciation |
C | Reproductively isolated speciation |
D | Habitat speciation |
Question 43 |
A | advanced civilization |
B | evolutionary adaptations |
C | sexual reproduction |
D | sudden specialization of DNA |
Question 44 |
A | ...random mating. |
B | ...no mutations. |
C | ...no gene flow between populations. |
D | ...no natural selection. |
E | ...very small population. |
Question 45 |
A | All the insects living in the City of Calgary. |
B | All the birds living in the entire world. |
C | All the insects living in the entire world. |
D | All the dogs and cats living in the City of Calgary. |
E | All the humans living in the City of Calgary. |
Question 46 |
A | It is the process in which the current organism differentiate from its' ancestors. |
B | It is the process in which certain inherited traits are survived and reproduced than the other traits. |
C | It is the process in which the dominant hunters eliminates another group of organisms. |
D | It is the process in which genetic mutation occur and lead to new forms of life. |
E | It is a process in which a new forms of traits are developed into a phenotype (as opposed to just genotypes). |
Question 47 |
A | biological |
B | morphological |
C | phylogenetic |
D | ecological |
Question 48 |
A | It favors only the characteristics that benefit the specific population. |
B | It can produce new genotypes that favors the entire global population of a species. |
C | It favors characteristics in a population that fit the current local environment. |
D | It can change the characteristics of a population in one of very few changes to the genetic code in a very short period of time. |
Question 49 |
A | I. DNA/chemical characteristics/traits II. asexually and sexually reproducing organisms. |
B | I. physical characteristics/traits II. asexually and sexually reproducing organisms. |
C | I. potential to interbreed in nature II. asexually and sexually reproducing organisms. |
D | I. physical characteristics/traits II. fossils only. |
E | I. potential to interbreed in nature II. fossils only. |
Question 50 |
A | 10% or more |
B | 30% or more |
C | 90% or more |
D | 50% or more |
E | 100% |
Question 51 |
I. Polymerization of monomers
II. Replication of RNA molecules and passing of biological information from one cell to another.
III. Abiotic synthesis of important molecules from simpler chemicals in the atmosphere.
IV. Enclosure within a lipid membrane ("protocells"), which maintained a distinct internal environment.
A | I (first to occur) , III , IV , II (last to occur) |
B | I (first to occur) , III , II , IV (last to occur) |
C | III (first to occur) , I , IV , II (last to occur) |
D | I (first to occur) , IV , III , II (last to occur) |
E | III (first to occur) , I , II , IV (last to occur) |
F | III (first to occur) , IV , I , II (last to occur) |
Question 52 |
A | Genetic drift |
B | Founder effect |
C | Disruptive selection |
D | Adaptive radiation |
E | Higher relative fitness |
Question 53 |
A | Speciation |
B | Natural selection |
C | Sexual reproduction |
D | Evolution |
E | Gene division and recombination |
Question 54 |
A | Because he assumed that inheritance traits can only be passed down to the offspring by the male population (fathers). |
B | Because he assumed that inheritance traits also includes acquired characteristics. |
C | Because he refused genetic variation within the same species. |
D | Because he refused that the environment also pays a vital role in evolution of desired traits. |
Question 55 |
A | ...by accumulating small changes over a a long period of time. |
B | ...by interbreeding. |
C | ...through sudden changes in gene frequencies. |
D | ...by sexual reproduction at first and later by both sexual and asexual reproduction. |
Question 56 |
A | The new offspring have a weak immune system. |
B | The species live in different habitat within the same area and would not meet each other. |
C | The individual organisms are unable to produce a fertilized cell. |
D | The mating behavior of one species is completely different from the other. |
Question 57 |
A | Plants and Eukarya |
B | Bacteria and Archaea |
C | Bacteria and Eukarya |
D | Bacteria and fungi |
E | Plants and Animals |
Question 58 |
A | Genetic drift |
B | Continental drift |
C | Intra- and inter-sexual selection |
D | Heterozygote advantage |
Question 59 |
According to the following table, what are the genotype frequencies for all three possible outcomes?
Table 1: Gene pool of the original rose plants.Red is dominant and White is recessive.
A | RR = 0.62 , Rr = 0.30 , rr = 0.04 |
B | RR = 0.64 , Rr = 0.30 , rr = 0.08 |
C | RR = 0.62 , Rr = 0.30 , rr = 0.08 |
D | RR = 0.60 , Rr = 0.36 , rr = 0.04 |
E | RR = 0.64 , Rr = 0.32 , rr = 0.04 |
F | RR = 0.60 , Rr = 0.32 , rr = 0.08 |
Note that you divide possible number of genotypes by the total number of plants for the each frequency.
Question 60 |
A | The natural selection may have created new alleles that are resistant to pesticides. |
B | The evolutionary mechanisms may have introduced a new alleles to the population that resist pesticide. |
C | The environment in which the pest population live may have acted as a barrier to the pesticides' effectiveness. |
D | Some individuals in a particular pest population may have the pesticide resistant alleles. |
Question 61 |
According to the following table, what is the total number of alleles in the gene pool?
Table 1: Gene pool of the original rose plants.Red is dominant and White is recessive.
A | 500 |
B | 570 |
C | 600 |
D | 660 |
E | 1200 |
Question 62 |
A | Dramatic reduction in salmon population due to excessive overfishing. |
B | Genetically modified food such as bananas that converted wild inedible fruits to consumables. |
C | The better taste and large size of famed berries verses smaller wild berries. |
D | Large variation in types of dogs (breeds) due to selective breeding. |
E | Human females choosing specific traits such as eye colour and height of donors when selecting sperm from a sperm bank. |
Question 63 |
A | The amount of semen/sperms that will be ejected during an ejaculation by humans. |
B | The number of brains humans could have. |
C | The eye colour of humans. |
D | The variation in depth of view in eyesight among humans. |
Question 64 |
According to the following table, what is the total number of plants in this gene pool?
Table 1: Gene pool of the original rose plants.Red is dominant and White is recessive.
A | 216 |
B | 408 |
C | 576 |
D | 600 |
E | 500 |
Question 65 |
A | 223 = 8.39 x 106 combinations |
B | 23 combinations |
C | 23/2 = 11.5 combinations |
D | 23 x 2 = 46 combinations |
E | 232 = 529 combinations |
← |
List |
→ |
1 | 2 | 3 | 4 | 5 |
6 | 7 | 8 | 9 | 10 |
11 | 12 | 13 | 14 | 15 |
16 | 17 | 18 | 19 | 20 |
21 | 22 | 23 | 24 | 25 |
26 | 27 | 28 | 29 | 30 |
31 | 32 | 33 | 34 | 35 |
36 | 37 | 38 | 39 | 40 |
41 | 42 | 43 | 44 | 45 |
46 | 47 | 48 | 49 | 50 |
51 | 52 | 53 | 54 | 55 |
56 | 57 | 58 | 59 | 60 |
61 | 62 | 63 | 64 | 65 |
End |
Credits: Based on the excellent class notes provided by, Dr. K. Ruckstuhl during Fall 2014.
FAQ | Report an Error
You may download this exam as a PDF file here.
If you get a question wrong, you can still click on the other answers. This will open up hints and explanations (if available), which will provide additional information.