BIS10V / NEM10V 2013 Midterm
Instructions:
Put your name and
student ID number on both the test and the scantron.
On your scantron, bubble in your student
ID number. Bubble in the test version.
Only use pencil (spare ones up front). Erase
stray marks fully. No stray marks in the row of black lines.
On your scantron, identify
the letter of the choice that best completes the statement or answers the question.
If you
think there is an error on the test, make a note on your test (not the scantron) and tell the
instructor on the way out.
Double check your scantron for "double bubbles" or
missing answers. There is no penalty for guessing.
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1.
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Nucleotides are the building blocks for
a. | proteins. | b. | steroids. | c. | lipids. | d. | ATP, NAD+, and
FAD. | e. | carbohydrates. |
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2.
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An individual water molecule shows _____
a. | polarity | b. | hydrogen-bonding capacity | c. | notable head
resistance | d. | spherelike hydration | e. | a and b |
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3.
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Genes are
a. | located on chromosomes. | b. | inherited in the same way as
chromosomes. | c. | arranged in linear sequence on chromosomes. | d. | assorted
independently during meiosis. | e. | all of these |
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4.
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These are sometimes referred to as rough or smooth, depending on the
structure.
a. | Golgi bodies | b. | ribosomes | c. | mitochondria | d. | lysosomes | e. | endoplasmic
reticula |
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5.
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A testcross involves
a. | two F1 hybrids. | b. | an F1 hybrid and an
F2 offspring. | c. | two parental organisms. | d. | an F1
hybrid and the homozygous dominant parent. | e. | an F1 hybrid and an organism
that is homozygous recessive for that trait. |
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6.
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The archenteron is the primitive _____ of an embryo and is completelly
surrounded by _____.
a. | circulatory system, mesoderm | b. | circulatory system,
endoderm | c. | respiratory tract, ectoderm | d. | gut, mesoderm | e. | gut,
endoderm |
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7.
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If two genes are almost always found in the same gamete, they are
a. | located close together on the same chromosome. | b. | located on
nonhomologous chromosomes. | c. | located far apart on the same
chromosome. | d. | found on the sex chromosome. |
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8.
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For Mendel's explanation of inheritance to be correct,
a. | the genes for the traits he studied had to be located on the same
chromosome. | b. | which gametes combine at fertilization had to be due to chance. | c. | genes could not be
transmitted independently of each other. | d. | only diploid organisms would demonstrate
inheritance patterns. | e. | none of these |
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9.
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Homologous chromosomes
a. | may exchange parts during meiosis. | b. | have alleles for the same characteristics even
though the gene expression may not be
the same. | c. | are in pairs, one
chromosome of each pair from the father and one from the mother. | d. | pair up during
meiosis. | e. | all of these |
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10.
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If all offspring of a cross have the genotype Aa, the parents of the
crosses would most likely be
a. | AA x aa. | b. | Aa x Aa. | c. | Aa x
aa. | d. | AA x Aa. | e. | none of these |
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11.
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The nitrogenous base found in DNA but not in RNA is
a. | adenine. | b. | cytosine. | c. | guanine. | d. | uracil. | e. | thymine. |
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12.
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Eukaryotic genes guide _____ .
a. | fast short-term activities | b. | overall growth | c. | development | d. | all of the
above |
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13.
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Water enters the ground by what process?
a. | Permutation | b. | Sublimation | c. | Transpiration | d. | Infiltration |
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14.
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Which reaction results in the breakdown of a chemical into simpler
substances?
a. | synthesis | b. | hydrolysis | c. | condensation | d. | polymerization | e. | both hydrolysis and
condensation |
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15.
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Crosses between F1 pea plants resulting from the cross AABB x aabb lead to F2
phenotypic ratios close to _____ .
a. | 1:2:1 | b. | 3:1 | c. | 1:1:1:1 | d. | 9:3:3:1 |
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16.
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A salt will dissolve in water to form
a. | acids. | b. | gases. | c. | ions. | d. | bases. | e. | polar
solvents. |
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17.
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Steroids are
a. | compounds that are related to lipids. | b. | sex hormones. | c. | components of
membranes. | d. | troublesome on walls of arteries. | e. | all of these |
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18.
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During metabolism, ATP (adenosine triphosphate) is an energy source for the
following processes:
a. | reproduction and growth | b. | reproduction and
maintenance | c. | growth | d. | growth and maintenance | e. | reproduction,
growth, and maintenance |
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19.
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A pH of 10 is how many times as basic as a pH of 7?
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20.
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Generally, a pair of homologous chromosomes _____ .
a. | carry the same genes | b. | are the same length, shape | c. | interact at
meiosis | d. | all of the above |
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21.
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Which organism did Mendel use to work out the laws of segregation and
independent assortment?
a. | the fruit fly | b. | Neurospora | c. | the garden
pea | d. | the chicken | e. | E. coli |
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22.
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What are the base-pairing rules for DNA?
a. | A-G, T-C | b. | A-C, T-G | c. | A-U,
C-G | d. | A-T, G-C |
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23.
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The negative subatomic particle is the
a. | neutron. | b. | proton. | c. | electron. | d. | neutron and proton. | e. | proton and
electron. |
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24.
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DNA contains many different genes that are transcribed into different _____
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a. | proteins | b. | mRNAs only | c. | mRNAs, tRNAs, and
rRNAs | d. | all are correct |
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25.
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Each DNA strand has a backbone that consists of alternating
a. | purines and pyrimidines. | b. | nitrogen-containing bases. | c. | hydrogen
bonds. | d. | sugar and phosphate molecules. | e. | amines and
purines. |
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26.
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_____ is the transfer of normal genes into body cells to correct a genetic
defect.
a. | Reverse transcription | b. | Nucleic acid hybridization | c. | Gene
mutation | d. | Gene therapy |
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27.
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How do hydrophobic molecules react with water?
a. | attracted to | b. | absorbed by | c. | repelled
by | d. | mixed with | e. | polarized by |
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28.
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Hemophilia
a. | is rare in the human population. | b. | is more common among men. | c. | was common in
English royalty. | d. | is an X-linked recessive trait. | e. | all of these |
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29.
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A karyotype
a. | compares one set of chromosomes to another. | b. | is a visual display
of chromosomes arranged according to size. | c. | is a photograph of cells undergoing mitosis
during anaphase. | d. | of a normal human cell shows 48 chromosomes. | e. | cannot be used to
identify individual chromosomes beyond the fact that two chromosomes are
homologues. |
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30.
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At the end of the ovarian cycle, if a woman is not pregnant, the corpus
luteum
a. | disintegrates. | b. | migrates to the oviducts to await the next
menstrual cycle. | c. | attaches to the uterine lining. | d. | grows into a new
follicle. |
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31.
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In prokaryotic cells but not eukaryotic cells, a(n) _____ precedes the genes of
an operon .
a. | lactose molecule | b. | promoter | c. | operator | d. | both b and c |
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32.
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Mendel found that pea plants expressing a recessive trait
a. | were pure-breeding. | b. | appeared only in the first generation of a
cross between two pure-breeding plants expressing contrasting forms of a trait. | c. | disappeared after
the second generation. | d. | could be produced only if one of the parents
expressed the recessive trait. | e. | none of these |
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33.
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What is formed when an atom loses or gains an electron?
a. | mole | b. | ion | c. | molecule | d. | bond | e. | reaction |
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34.
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Cell differentiation _____ .
a. | occurs in all complex multicelled organisms | b. | requires different
genes in different cells | c. | involves selective gene
expression | d. | both a and c | e. | all of the
above |
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35.
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Organelles composed of a system of canals, tubes, and sacs that transport
molecules inside the cytoplasm are
a. | Golgi bodies. | b. | ribosomes. | c. | mitochondria. | d. | lysosomes. | e. | endoplasmic
reticula. |
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36.
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_____ segregate during _____ .
a. | Homologues; mitosis | b. | Genes on nonhomologous chromosomes;
meiosis | c. | Homologues; meiosis | d. | Genes on one chromosome;
mitosis |
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37.
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Experiments like those first performed by Stanley Miller in 1953 demonstrated
that
a. | DNA forms readily and reproduces itself. | b. | many of the lipids,
carbohydrates, proteins, and nucleotides required for life can form under abiotic
conditions. | c. | complete, functioning prokaryotic cells are formed after approximately three
months. | d. | a lipid-protein film will eventually be formed by thermal
convection. | e. | all of these |
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38.
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Meiosis _____ the parental chromosome number.
a. | doubles | b. | reduces | c. | maintains | d. | corrupts |
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39.
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The sequence of amino acids is the __________ structure of proteins.
a. | primary | b. | secondary | c. | tertiary | d. | quaternary | e. | stereo |
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40.
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One portion of the cell theory states that
a. | all cells have a nucleus. | b. | all cells divide by
meiosis. | c. | all living organisms are made up of cells. | d. | cells arise through
spontaneous generation. | e. | growth is solely the result of cell
division. |
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41.
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Flowering Dogwood is most likely to be found in
a. | Temperate Deciduous Forest | b. | Coniferous Forest | c. | Shrubland | d. | Grassland | e. | Tundra |
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42.
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Through meiosis
a. | alternate forms of genes are shuffled. | b. | parental DNA is divided and distributed to
forming gametes. | c. | the diploid chromosome number is reduced to haploid. | d. | offspring are
provided with new gene combinations. | e. | all of these |
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43.
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The theory of segregation
a. | deals with the alleles governing two different traits. | b. | applies only to
linked genes. | c. | applies only to sex-linked genes. | d. | explains the behavior of a pair of alleles
during meiosis. | e. | none of these |
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44.
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The usual F2 phenotypic ratio of a dihybrid cross is
a. | 1:1. | b. | 2:1. | c. | 9:3:3:1. | d. | 1:2:1. | e. | 3:1. |
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45.
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Crossing over is one of the most important events in meiosis because
a. | it produces new arrays of alleles on chromosomes. | b. | homologous
chromosomes must be separated into different daughter cells. | c. | the number of
chromosomes allotted to each daughter cell must be halved. | d. | homologous
chromatids must be separated into different daughter cells. | e. | all of
these |
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46.
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A -C=O group is a(n) __________ group.
a. | carboxyl | b. | hydroxyl | c. | amino | d. | carbonyl | e. | ketone |
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47.
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Multiple effects of a single gene is known as
a. | expressivity. | b. | penetrance. | c. | codominance. | d. | pleiotropy. | e. | multiple
alleles. |
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48.
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Copies of chromosomes linked together at their centromeres at the beginning of
meiosis are appropriately called what kind of chromatids?
a. | mother | b. | daughter | c. | sister | d. | homologous | e. | none of
these |
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49.
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The chemical processes in the living cell are collectively called
a. | adaptation. | b. | homeostasis. | c. | evolution. | d. | respiration. | e. | metabolism. |
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50.
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Nucleotides contain what kind of sugars?
a. | three-carbon | b. | four-carbon | c. | five-carbon | d. | six-carbon | e. | seven-carbon |
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