Basic concepts: cell structure and functions, diffusion, permeability, energy, enzymes, cell division, cell cycle, mitosis, meiosis, caner, chromosomes, DNA and RNA replication / translation / transcription, mutations, genetic diseases, inheritance, molecular genetics, proteins, amino acids, polymers, etc.

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 ID-Number or description because server may randomize the questions and answers.

Go to: Midterm I | Midterm II | Midterm III

Biology 205 (BIOL 205-UCAL) Final Exam

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

Some questions have hints and explanations. Click Start to begin.

Start

Congratulations - you have completed Biology 205 (BIOL 205-UCAL) Final Exam.

You scored %%SCORE%% out of %%TOTAL%%. With incorrect multiple attempts your score is %%PERCENTAGE%%

Your performance has been rated as %%RATING%%

Your answers are highlighted below.

Question 1

Enthropy increased with... (ID-BIF-78)

A	...decrease in collisions among atoms.
B	...decreased in in energy.
C	...increased in in energy.
D	...released of energy.

Question 2

Which of the following substances would have the most trouble crossing a biological membrane by diffusing through the lipid bilayer? (ID-BIF-15)

A	Carbon dioxide
B	Oxygen
C	A small, nonpolar molecule such as butane (C₄H₁₀).
D	Positivity charged sodium ion.

Question 3

Multiple effects of a single gene is known as... (ID-BIF-73)

A	...penetrance.
B	...pleiotropy.
C	...multiple alleles.
D	...codominance.
E	...expressivity.

Question 4

According the Mendelian genetics, which of the following statement(s) on characters and traits are correct? (ID-BIF-57)

I. Colour of human skin is a character.
II. Green colour of peas as opposed to yellow is a trait.
III. Tall trees as opposed to short trees is a character.
IV. Shape of brain is a character.

A	I, II and IV only.
B	II and IV only.
C	II and III only.
D	I and III only.
E	All four statements are correct.
F	I, II and III only.

Question 5

DNA damage caused by UV radiation result in thymine dimer. This can be repaired by a processed called ___ which detects the distortion in the DNA structure. (ID-BIF-56)

A	nucleotide excision repair
B	nucleic acid bond repair
C	DNA polymer repair
D	thymine insertion repair
E	DNA ligase repair

Question 6

In tRNA where does the anticodon structure located? (ID-BIF-42)

A	Deep inside the tRNA structure.
B	At the amino acid attachment site of tRNA.
C	Outside but exposed within the ribosome.
D	Outside sticking out of the ribosome.

Question 7

How much time a cell would typically spend in the M phase of cell division? (ID-BIF-05)

A	About 10% of the total time of the cell cycle.
B	About 90% of the total time of the cell cycle.
C	About 35% of the total time of the cell cycle.
D	About 50% of the total time of the cell cycle.

Question 8

What is a monohybrid cross? (ID-BIF-58)

A	A cross between individuals that only differ due to one F-generation.
B	A cross between individuals that only differ in one character.
C	A cross between individuals from the same species.
D	A cross between individuals that are identical. In other words, no difference between any charter.
E	A cross between individuals with different P-generations.

Question 9

If tall (D) is dominant to dwarf (d), and two homozygous varieties DD and dd are crossed, then what kind of offspring will be produced? (ID-BIF-66)

A	All DD
B	All dd
C	All Dd
D	1/2 DD, 1/2 Dd
E	1/2 Dd, 1/2 dd

Question 10

A human lost at sea without fresh drinking water. He/she started to drink salt water as a substitute to fresh water. Why is drinking salt water harmful? (ID-BIF-50)

A	It creates a hypertonic condition in which the cells lose water.
B	It leads to isotonic situation where cells could not obtain nutrients from outside and could not remove waste to outside.
C	It leads to lysed condition which eventually caused the bursting of the cell membrane.
D	It creates a hypotonic condition in which the cells lose water.

Question 11

Which of the of the following statements is correct on chromosome theory of inheritance? (ID-BIF-29)

A	Only few selected chromosomes are responsible for inheritance.
B	Chromosomes themselves do not control the patterns of inheritance.
C	Chromosomes undergo segregation and independent assortment.
D	Chromosomes undergo segregation and but do not independent assortment.

Question 12

An individual with a genotype of Aa Bb CC is able to produce how many different kinds of gametes? (ID-BIF-72)

A	Eight
B	Four
C	Two
D	Seven
E	Three

Question 13

Which of the following best describe a testcross? (ID-BIF-59)

A	Cross between two parental organisms.
B	Cross between a F1 hybrid and an organism that is homozygous recessive for that trait.
C	Cross between two F1 hybrids.
D	Cross between a F1 hybrid and the homozygous dominant parent.
E	Cross between a F1 hybrid and a heterozygous organism.

Question 14

Substrates bind to an enzyme’s ________ site. (ID-BIF-16)

A	active
B	inhibitory
C	phosphate
D	allosteric

Question 15

Transfer of a phosphate group from ATP to another molecule is known as... (ID-BIF-76)

A	Energization
B	Hydrolysis
C	Phosphorylation
D	Polymerization

Question 16

In DNA and RNDA, the nitrogenous bases are attached to what structure? (ID-BIF-39)

A	Complementary RNA strand
B	Sugar-phosphate backbone
C	Nucleotides and polynucleotides framework
D	Amino acid and protein sequences

Question 17

What is the term given to describe the condition when an organism has a 2n + 1 chromosome composition? (ID-BIF-80)

A	Trisomy
B	Muted
C	Diploid
D	Monosomy
E	Haploid

Question 18

Which of the following mechanisms of controlling gene expression occurs outside of the nucleus? (ID-BIF-12)

A	DNA packing/unpacking
B	Transcription
C	RNA splicing
D	Adding a cap and tail to RNA
E	Translation

Question 19

The attachment of a chromosomal fragment to a nonhomologous chromosome is... (ID-BIF-25)

A	...a duplication.
B	...an inversion.
C	...a translocation.
D	...a deletion.

Question 20

The theory of segregation... (ID-BIF-71)

A	...applies only to sex-linked genes.
B	...explains the behavior of a pair of alleles during meiosis.
C	...deals with the alleles governing two different traits.
D	applies only to linked genes.

Question 21

An enzyme inhibitor process in which an excessive amount of the product will result in suppression of the starting reaction is known as... (ID-BIF-68)

A	...product inhibitor.
B	...competitive inhibitor.
C	...reactant inhibitor.
D	...feedback inhibitor.
E	...noncompetitive inhibitor.

Question 22

In most plants and animal genes, the non-cording region is known as... (ID-BIF-40)

A	...centromere.
B	...loci.
C	...intron.
D	...splicer.
E	...exon.

Question 23

An abnormalities in ATP production will most likely result in... (ID-BIF-18)

A	...destruction of the cell.
B	...reduction in RNA replication.
C	...reduction in protein synthesis.
D	...destruction of the nucleus.

Question 24

Genetic diversity increased at a faster rate with ___ than with ___. (ID-BIF-03)

A	asexual reproduction , sexual reproduction
B	natural gene evolution , genetic mutations
C	sexual reproduction , asexual reproduction
D	mitosis cell division , meiosis cell division
E	genetic mutations , natural gene evolution

Question 24 Explanation:

Note the genetic mutations can actually reduce the genetic diversity.

Question 25

What is the genetic property in which a single gene controls several phenotype characters? (ID-BIF-36)

A	Promoter
B	Monogenetic inheritance
C	Pleiotropy
D	Polygenetic inheritance
E	Achondroplasia

Question 26

In Mendel's time, which of the following is a popular belief? (ID-BIF-69)

A	The characteristics of parents were blended in the offspring.
B	Acquired characteristics were inherited.
C	All genetic traits bred true.
D	The inheritance of traits was controlled by blood.
E	Only certain forms of domesticated plants and animals bred true.

Question 27

Which of the following mutation will most likely have no adverse effect on the protein coded by the mutated gene? (ID-BIF-53)

A	Nucleotide insertion.
B	Nucleotide deletion.
C	Nucleotide substitution.
D	Rearrangement of codons.
E	Alteration of the start codon.

Question 28

Which of the following indicates homozygous genotypes? (ID-BIF-63)

A	AA and Aa
B	AA
C	Aa
D	aa
E	AA and aa

Question 29

What enzyme catalyzes the elongation of a new DNA strand? (ID-BIF-47)

A	DNA thymine
B	DNA Invertase
C	DNA ligase
D	DNA Pectinase
E	DNA polymerase

Question 30

In genetics, what is a locus (loci)? (ID-BIF-62)

A	A site in which a particular gene is located in the chromosome.
B	A region where the start codon is located.
C	A region where the end codon is located.
D	A type of mutation within a chromosome caused by an unmatched allele.
E	The region of a duplicated chromosomes where two sister chromatids are joined.

Question 31

What is the primary compound or structure that controls the movement of daughter chromosomes during cell division? (ID-BIF-31)

A	Size and type of the chromosome.
B	The location of the centrosomes.
C	Type of ATP compound that assist in the movement.
D	Shape of the mitotic spindle.

Question 32

The condition in which the water enters and leaves the cell at an equal rate is known as... (ID-BIF-49)

A	...hypotonic.
B	...isotonic.
C	...hypertonic.
D	...static.
E	...hydrotonic.

Question 33

Sex-linked conditions are more common in men than in women because... (ID-BIF-23)

A	...men need to inherit only one copy of the recessive allele for the condition to be fully expressed.
B	...the sex chromosomes are more active in men than in women.
C	...the genes associated with the sex-linked conditions are linked to the Y chromosome, which determines maleness.
D	...men acquire two copies of the defective gene during fertilization.

Question 34

Mitosis is composed of how many stages? (ID-BIF-06)

A	3
B	2
C	4
D	5

Question 35

Which of the following features would characterize a lytic cycle of a viral infection? (ID-BIF-45)

A	The cycle typically ends when the host bacterium divides.
B	The cycle typically leads to the lysis of the host cell.
C	The viral genes typically remain inactive once they are inside the host cell.
D	The viral DNA is inserted into a bacterial chromosome.
E	The virus reproduces outside of the host cell.

Question 36

Large solid molecules are transported across cell membrane through what process? (ID-BIF-19)

A	Pinocytosis
B	Phagacytosis
C	Receptor-neduated endocytosis
D	Facilitated diffusion
E	Active diffusion

Question 37

Which of the following statements is true? (ID-BIF-60)

A	Darwin received Mendel's paper but did not understand its significance.
B	The blending theory of inheritance provides support for evolution.
C	Darwin did not know which mechanisms were responsible for the variation he saw.
D	Darwin did not know that mechanisms that causes genetic variations in plants are similar to that of animals.
E	The explanation for genetics had no implications for evolution.

Question 38

Prior to mitosis, each chromosome of a eukaryotic cell consists of a pair of identical structures called... (ID-BIF-13)

A	...sister chromatids.
B	...DNA transcripts.
C	...sister chromosomes.
D	...homolgous chromosomes.
E	...chromatin.

Question 39

What is the best definition for vaccine? (ID-BIF-37)

A	A synthetic virus used for infecting the host organism in order to prevent more dangerous strain of the virus from infecting the host.
B	A genetically modified version of the the virus used to suppress the host organism's immune system.
C	A derivative of a pathogen used to simulate a host organism's immune system.
D	A lead-based compound used in medical substances usually added to host's blood stream that boost immune system.

Question 40

Place the following steps of polypeptide formation in proper order. (ID-BIF-51)

I. Translocation
II. Renegotiation of the start codon.
III. Codon recognition by pairing tRNA anticodon with mRNA codon.
IV. Peptide bond formation.

A	II (first) --> III --> IV --> I (last)
B	III (first) --> III --> IV --> I (last)
C	II (first) --> III --> II--> IV (last)
D	III (first) --> II --> I--> IV (last)

Question 41

What factor(s) that affect the activity of an enzyme if anything but the optimal conditions? (ID-BIF-79)

A	temperature and chemical balance
B	pH, chemical balance and temperature
C	pH and temperature
D	pH only
E	temperature only

Question 42

What nucleotide sequence would be found on the partner DNA strand, A-G-T-C-T-G-C? (ID-BIF-20)

A	G-A-T-C-A-C-A
B	T-A-G-A-T-C-G
C	T-C-A-G-A-C-G
D	T-G-T-G-T-A-G
E	G-T-A-G-A-C-T

Question 42 Explanation:

Remember, A - T and C - G.

Question 43

Hybrid organisms produced from a cross between two pure-breeding organisms belong to which generation? (ID-BIF-64)

A	F2 generation
B	H1 generation
C	A1 generation
D	P2 generation
E	P1 generation
F	F1 generation

Question 44

How did the Scientists Hershey-Chase discovered that DNA as the primary genetic material? (ID-BIF-38)

A	They separated the DNA from the rest of the cell structure using centrifuged mixture and discovered DNA is the only living material.
B	They observed the nucleus under high powered microscopes and discovered that the DNA is much larger than proteins.
C	They were able to identify nucleotides which provided the proof needed to show that DNA is the genetic material.
D	They injected different radioactive isotopes label DNA and protein then trace it using phage.

Question 45

According to Mendel, what kind of genes "disappear" in F1 pea plants? (ID-BIF-65)

A	Recessive
B	Sex-linked
C	Dominant
D	Codominant
E	Lethal

Question 46

Translation of RNA is performed by what structure? (ID-BIF-54)

A	Ribosomes
B	Codons and anticodons
C	Polypeptides
D	tRNAs

Question 47

Consider to following sentence: "The dog did not eat." Which one of the following variations of this sentence is most like a reading frame mutation? (ID-BIF-46)

A	The dog dog did not eat.
B	The did not eat.
C	The dod idn ote at.
D	The dog did dog did not eat.
E	The did dog not eat.

Question 48

Which of the following statements about the the reaction A = B + C + heat is true? (ID-BIF-17)

A	The reaction is an endothermic reaction.
B	The potential energy of the products is more than that of the reactant.
C	The potential energy of the products is less than that of the reactant.
D	The reaction require a catalyst such as an enzyme to proceed.

Question 49

During which stage of meiosis do synapsis and crossing over occur? (ID-BIF-28)

A	Metaphase II
B	Metaphase I
C	Interphase I
D	Prophase I
E	Prophase II

Question 50

In genetics, what is a promoter? (ID-BIF-41)

A	A protein which encourages DNA replication by stimulating the DNA.
B	A transcription enzyme within the RNA structure that allow it to pass information to proteins.
C	A protein which can attached to RNA to produce complementary DNA strand.
D	A transcription enzyme within the RNA structure that allow it to obtain information from the nucleus.
E	A specific binding site for sigma factor in DNA which the RNA can bind.

Question 51

The crossing over regions between nonsister chromatids of homologous chromosomes are known as... (ID-BIF-33)

A	...tetrads.
B	...loci.
C	...recombs.
D	...chiasmas.

Question 52

What does transformation involve in bacteria? (ID-BIF-70)

A	The creation of a strand of RNA from a DNA molecule.
B	The creation of a strand of DNA from an RNA molecule.
C	The infection of cells by a phage DNA molecule.
D	Assimilation of external DNA into a cell.
E	The type of semiconservative replication shown by DNA.

Question 53

What does tRNA transport? (ID-BIF-43)

A	Nucleotides
B	Polymers
C	Amino acids
D	DNA
E	Nucleic acids

Question 54

Chromosomes made of what biological materials? (ID-BIF-01)

A	RNA
B	DNA and RNA
C	DNA
D	DNA and Proteins
E	Proteins

Question 55

Which of the following kinds of data could be used to map the relative position of three genes on a chromosome? (ID-BIF-24)

A	The frequencies with which the corresponding traits occur together in offspring.
B	The frequencies of mutations in the genes.
C	The frequencies with which the genes exhibit incomplete dominance over each other.
D	The frequencies with which the genes are inherited from the mother and from the father.

Question 56

During which phase the nuclear envelope fragments and the nucleoli disappear in mitosis? (ID-BIF-14)

A	Anaphase
B	Metaphase
C	Prophase
D	Interphase
E	Prometaphase

Question 57

If A is dominant to a and B is dominant to b, what is the expected phenotypic ratio of the cross AaBb _ AaBb? (ID-BIF-22)

A	1:1:1:1
B	1:3:3:2
C	9:3:3:1
D	16:0:0:0
E	8:4:2:2

Question 58

Which of the following statement is correct about gene regulation? (ID-BIF-32)

A	It is the process in which the speed of the cell division is controlled by several genetic factors.
B	It is the process in which genes are turned "on" and "off" as a response to stimuli.
C	It is a laboratory process used for production of genetically modified foods.
D	It is a laboratory process used in in vitro fertilization.

Question 59

In his experiments with plants, Mendel removed which part of the plant to prevent unwanted fertilizations? (ID-BIF-61)

A	Petals
B	Stamens
C	Flowers
D	Stigmas
E	Pistils

Question 60

Which of the following statement is false about antibiotics? (ID-BIF-55)

A	Antibiotics work by either killing or inhibiting the growth of undesirable bacteria.
B	Excessive use of antibiotics will create drug resistant bacteria also known as superbugs.
C	Antibiotics not only can be used as a preventive medication, but also can be used to treat existing infections.
D	Penicillin antibiotic is derived from a fungi and belongs to β-Lactam antibiotics class.

Question 60 Explanation:

The use of antibiotic only increase the frequency of drug resistance bacteria that were already present in bacterial population. It cannot "create" a drug resistant bacteria.

Question 61

Scientists working for NASA found an organism on Mars. After analyzing the DNA structure, they found the organization contains 60 chromosomes. Assuming the exact same process of mitosis occur on Martian life as our humans, what is the expected number of chromosomes in the Martian gametes? (ID-BIF-34)

A	6
B	30
C	10
D	60

Question 62

Strictly speaking, the phrase "like begets like" refers to... (ID-BIF-11)

A	...sexual reproduction between different species.
B	... all forms of reproduction.
C	...sexual reproduction only.
D	...asexual reproduction only.

Question 63

What do you call a chromosome that is not involved in sex determination? (ID-BIF-74)

A	Heterosomes
B	Genomes
C	Autosomes
D	Alleles
E	Nucleosomes

Question 64

At what stage of the mitosis process do the chromatids align in the center of the cell forming a plate like structure? (ID-BIF-07)

A	Prophase
B	Metaphase
C	Anaphase
D	Prometaphase
E	Telophase

Question 65

During which phase of mitosis the sister chromatids separates and become daughter chromosomes? (ID-BIF-27)

A	Prophase
B	Metaphase
C	Interphase
D	Telophase
E	Anaphase

Question 66

If a cell has three different amino acids, four different sugars, and two different ions, how many different proteins does the cell need to move these molecules across the plasma membrane using facilitated transport? (ID-BIF-48)

A	Four
B	One
C	Three
D	Nine
E	Two

Question 67

The directions for each amino acid in a polypeptide are indicated by a codon that consists of _____ nucleotide(s) in an RNA molecule. (ID-BIF-44)

A	one
B	five
C	two
D	four
E	three

Question 67 Explanation:

Eg. UAC-AUG start codon.

Question 68

Which of the following bond breaks down in ATP in order to release energy? (ID-BIF-26)

Credit: http://commons.wikimedia.org/ wiki/File:ATP_chemical_structure.png

A	III
B	II
C	I
D	IV

Question 69

At what stage of the mitosis process the nuclear envelope breaks down? (ID-BIF-08)

A	Prometaphase
B	Metaphase
C	Prophase
D	Telophase
E	Anaphase

Question 70

What would be the most likely cause for high rate of cystic fibrosis (CF) among people in the isolated region, Saguenay-Lac-Saint-Jean, Quebec? (ID-BIF-35)

A	Increased in genetic diversity.
B	Inbreeding
C	Genetic mutations caused by external factors.
D	Naturally occurring genetic mutations.

Question 70 Explanation:

This is an example used in the textbook for inbreeding. When a student reads "isolated region" in the question, the answer should be obvious.

Question 71

The __I__ pathways consumes energy to build complex molecules while __II__ pathways releases energy by breaking down complex molecules into smaller, simpler compounds. (ID-BIF-77)

A	I. anabolic II. metabolic
B	I. anabolic II. catabolic
C	I. catabolic II. anabolic
D	I. metabolic II. catabolic
E	I. catabolic II. metabolic
F	I. metabolic II. anabolic

Question 72

What is energy coupling? (ID-BIF-67)

A	Use of two phosphates from ATP to drive a single reaction.
B	Breaking down of molecules to obtain energy from both ATP and ADP.
C	Use of two ATPs to drive a single reaction.
D	Use of energy released from exergonic reactions to drive endergonic reactions.

Question 73

If the solute concentration outside the cell is lower than that of the inside, it is known as a ____ condition. (ID-BIF-10)

A	diffusion
B	hypotonic
C	non-equilibrium
D	isotonic
E	hypertonic

Question 74

Which of the following statement is correct about the diffusion chemical equilibrium? (ID-BIF-09)

A	The diffusion does not allow chemical equilibrium because particles will still be moved across through active transport.
B	At equilibrium, transport still occurs but there is no net change in concentration.
C	At equilibrium, transport of particles ceased and there is no net change in concentration.
D	Even at equilibrium, there is a net diffusion direction but this is balanced by other sources of input into the cell.

Question 75

What is the best genetic descriptor for an X-linked carrier? (ID-BIF-75)

A	Homozygous dominant female
B	Heterozygous female
C	Homozygous recessive female
D	Homozygous male
E	Heterozygous male

Question 76

Tetracycline is a broad-spectrum antibiotic that binds to the 30S ribosomal subunit and inhibits translation by preventing the binding of tRNA. What is the direct effect of tetracycline? (ID-BIF-52)

A	Prevention of translation.
B	Prevention of the nucleic acid formation.
C	Interruption of phospholipid synthesis.
D	Prevention of transcription.
E	Interruption of DNA replication.

Question 77

A situation where change in amino acid codon into a stop codon is most likely caused by what type of mutation? (ID-BIF-30)

A	Silent mutation
B	Missense mutation
C	Reading frame mutation
D	Nonsense mutation

Question 78

What type of cell division do the prokaryotes undergo? (ID-BIF-04)

A	meiosis
B	mitosis
C	binary fission
D	replication

Question 79

Which of the following occurs when RNA polymerase attaches to the promoter DNA? (ID-BIF-21)

A	Initiation of a new RNA molecule.
B	Initiation of a new polypeptide chain.
C	Elongation of the growing RNA molecule.
D	Termination of the RNA molecule.

Question 80

Which of the following statement is correct about reproduction? (ID-BIF-02)

A	Multicultural organisms only reproduce through sexual reproduction and are not capable of asexual reproduction.
B	Only the organisms in the Kingdom Animalia undergo sexual reproduction.
C	Early plants sexually reproduced their offspring.
D	Early humans asexually reproduced their offspring.
E	Both plants and animals can produce offspring through sexual reproduction.

Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results

There are 80 questions to complete.

←

List

→

Return

Shaded items are complete.

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
66	67	68	69	70
71	72	73	74	75
76	77	78	79	80
End

Return

Credits: Based on the excellent class notes provided by, Dr. Lohmeier-Vogel during Fall 2014. Additional study material: Ch. 5, 8, 9, 10 Campbell Biology ISBN-10: 1-269-98476-4.
FAQ | Report an Error

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.

Sanuja Senanayake

Biology 205 Final Exam-University of Calgary

Go to: Midterm I | Midterm II | Midterm III

Biology 205 (BIOL 205-UCAL) Final Exam

Standing on the shoulders of giants

Go to: Midterm I | Midterm II | Midterm III

Biology 205 (BIOL 205-UCAL) Final Exam

Print/Share:

Standing on the shoulders of giants