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

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

Question 2

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

A	About 50% 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 10% of the total time of the cell cycle.

Question 3

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	30
B	10
C	6
D	60

Question 4

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

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

Question 5

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

Question 6

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

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

Question 7

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

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

Question 8

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

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

Question 9

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

A	Prophase
B	Prometaphase
C	Anaphase
D	Metaphase
E	Interphase

Question 10

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

A	Metaphase
B	Interphase
C	Anaphase
D	Telophase
E	Prophase

Question 11

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 12

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	Three
C	Nine
D	One
E	Two

Question 13

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

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

Question 14

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

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

Question 15

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

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

Question 16

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	Type of ATP compound that assist in the movement.
C	Shape of the mitotic spindle.
D	The location of the centrosomes.

Question 17

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

Question 18

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

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

Question 19

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

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

Question 20

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

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

Question 21

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

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

Question 22

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	II
B	IV
C	I
D	III

Question 23

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

Question 24

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

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

Question 25

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	Telophase
B	Prophase
C	Prometaphase
D	Metaphase
E	Anaphase

Question 26

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

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

Question 26 Explanation:

Remember, A - T and C - G.

Question 27

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

A	Codons and anticodons
B	tRNAs
C	Ribosomes
D	Polypeptides

Question 28

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

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

Question 28 Explanation:

Note the genetic mutations can actually reduce the genetic diversity.

Question 29

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

Question 30

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

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

Question 30 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 31

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

Question 32

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

A	binary fission
B	replication
C	mitosis
D	meiosis

Question 33

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

A	Polymerization
B	Hydrolysis
C	Phosphorylation
D	Energization

Question 34

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

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

Question 35

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

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

Question 36

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

Question 37

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

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

Question 38

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

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

Question 39

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

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

Question 40

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

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

Question 41

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

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

Question 42

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

A	allosteric
B	inhibitory
C	active
D	phosphate

Question 43

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

Question 43 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 44

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

Question 45

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

A	Heterosomes
B	Autosomes
C	Nucleosomes
D	Genomes
E	Alleles

Question 46

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

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

Question 47

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

A	Petals
B	Stigmas
C	Stamens
D	Flowers
E	Pistils

Question 48

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

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

Question 49

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

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

Question 50

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

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

Question 51

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	four
B	one
C	two
D	five
E	three

Question 51 Explanation:

Eg. UAC-AUG start codon.

Question 52

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

Question 53

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

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

Question 54

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

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

Question 55

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

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

Question 56

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

Question 57

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

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

Question 58

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

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

Question 59

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

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

Question 60

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

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

Question 61

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

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

Question 62

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

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

Question 63

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

Question 64

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

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

Question 65

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

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

Question 66

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

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

Question 67

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

A	Three
B	Two
C	Seven
D	Eight
E	Four

Question 68

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

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

Question 69

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

A	At equilibrium, transport of particles ceased and there is no net change in concentration.
B	The diffusion does not allow chemical equilibrium because particles will still be moved across through active transport.
C	At equilibrium, transport still occurs but 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 70

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

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

Question 71

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

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

Question 72

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

A	3
B	2
C	4
D	5

Question 73

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

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

Question 74

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

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

Question 75

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

Question 76

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

A	Muted
B	Haploid
C	Diploid
D	Monosomy
E	Trisomy

Question 77

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

A	Anaphase
B	Prometaphase
C	Metaphase
D	Prophase
E	Telophase

Question 78

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

Question 79

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

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

Question 80

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

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

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