BIS10V / NEM10V 2014 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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A locus is
a. | a recessive gene. | b. | an unmatched allele. | c. | a sex
chromosome. | d. | the location of an allele on a chromosome. | e. | a dominant
gene. |
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2.
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Four of the five answers listed below are characteristics of water. Select the
exception.
a. | stabilizes temperature | b. | common solvent | c. | cohesion and surface
tension | d. | produces salts | e. | changes shape of hydrophilic and hydrophobic
substances |
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3.
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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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4.
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The probability of a crossover occurring between two genes on the same
chromosome is _____ .
a. | unrelated to the distance between them | b. | increased if they are closer together on the
chromosome | c. | increased if they are farther apart on the chromosome |
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5.
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The F2 phenotypic ratio of a monohybrid cross is
a. | 1:1. | b. | 2:1. | c. | 9:3:3:1. | d. | 1:2:1. | e. | 3:1. |
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6.
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The spindle apparatus becomes visible during
a. | anaphase. | b. | metaphase. | c. | interphase. | d. | prophase. | e. | telophase. |
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7.
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The atom diagnostically associated with organic compounds is
a. | carbon. | b. | oxygen | c. | nitrogen. | d. | sulfur. | e. | hydrogen. |
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8.
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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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9.
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Hybrid organisms produced from a cross between two pure-breeding organisms
belong to which generation?
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10.
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A somatic cell having two of each type of chromosome has a (n) _____ chromosome
number.
a. | diploid | b. | haploid | c. | tetraploid | d. | abnormal |
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11.
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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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12.
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The positive subatomic particle is the
a. | neutron. | b. | proton. | c. | electron. | d. | neutron and proton. | e. | proton and
electron. |
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13.
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Which is not a nucleotide base in DNA?
a. | adenine | b. | guanine | c. | uracil | d. | thymine | e. | cytosine |
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14.
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The three most common atoms in your body are
a. | hydrogen, oxygen, and carbon. | b. | carbon, hydrogen, and
nitrogen. | c. | carbon, nitrogen, and oxygen. | d. | nitrogen, hydrogen, and
oxygen. | e. | carbon, oxygen, and sulfur. |
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15.
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Chromosomes are duplicated during which period?
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16.
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These are the primary cellular sites for the production of proteins.
a. | Golgi bodies | b. | ribosomes | c. | mitochondria | d. | lysosomes | e. | smooth endoplasmic
reticula |
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17.
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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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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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Hormones may ______ gene transcription in target cells.
a. | promote | b. | inhibit | c. | participate
in | d. | both a and b |
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20.
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The appropriate adjective to describe DNA replication is
a. | nondisruptive. | b. | semiconservative. | c. | progressive. | d. | natural. | e. | lytic. |
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21.
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In mitosis, if a parent cell has 16 chromosomes, each daughter cell will have
how many chromosomes?
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22.
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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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23.
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Cellular pH is kept near a value of 7 because of
a. | salts. | b. | buffers. | c. | acids. | d. | bases. | e. | water. |
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24.
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The chromosomal DNA is duplicate in _____ of meiosis.
a. | prophase I | b. | metaphase I | c. | interphase | d. | prophase II | e. | anaphase
II |
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25.
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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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26.
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Which does NOT occur in prophase I of meiosis?
a. | cytokinesis | b. | formation of groups of four
chromatids | c. | homologue pairing | d. | crossing over | e. | condensation of
chromatin |
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27.
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The sex chromosome composition of a person with Turner syndrome is
a. | XXX. | b. | XO. | c. | XXY. | d. | XYY. | e. | none of
these |
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28.
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In which biome would you expect to find Spruce
a. | Rain Forest | b. | Desert
| c. | Coniferous Forest | d. | Tundra
| e. | Shrubland |
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29.
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Water is an example of a(n)
a. | atom. | b. | ion. | c. | compound. | d. | mixture. | e. | element. |
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30.
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The following is composed of a 1:2:1 ratio of carbon to hydrogen to
oxygen?
a. | carbohydrate | b. | protein | c. | lipid | d. | nucleic acid | e. | steroid |
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31.
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The chromosomes and genes are actually replicated during
a. | anaphase. | b. | metaphase. | c. | interphase. | d. | prophase. | e. | telophase. |
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32.
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When DNA replication begins, _____.
a. | the two DNA strands unwind from each other | b. | the two DNA strands
condense for base transfers | c. | two DNA molecules bond | d. | old strands move to
find new strands |
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33.
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Prokaryotic cells do NOT have
a. | nucleoid regions. | b. | membrane bound nuclei. | c. | cytoplasm. | d. | plasma membrane. | e. | DNA. |
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34.
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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?
a. | all intermediate forms | b. | all tall | c. | all
dwarf | d. | 1/2 tall, 1/2 dwarf | e. | 3/4 tall, 1/4
dwarf |
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35.
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The distribution of cytoplasm to daughter cells is accomplished during
a. | prokaryotic fission. | b. | mitosis. | c. | meiosis. | d. | cytokinesis (cytoplasmic
division). | e. | karyokinesis. |
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36.
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The location of a gene on a chromosome is its
a. | centromere. | b. | locus. | c. | autosome. | d. | allele. | e. | none of
these |
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37.
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The atomic number is determined by the number of
a. | neutrons and protons. | b. | neutrons and electrons. | c. | protons and
electrons. | d. | protons only. | e. | neutrons only. |
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38.
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From outside to inside, an embryo at the end of gastrulation has the following
three embryonic tissue layers:
a. | Ectoderm, mesoderm, endoderm | b. | Ectoderm, endoderm,
mesoderm | c. | Mesoderm, endoderm, ectoderm | d. | Endoderm, mesoderm,
ectoderm | e. | Endoderm, ectoderm, mesoderm |
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39.
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The obvious advantage of the lactose operon system is that
a. | lactose is not needed as energy for bacteria. | b. | lactose-metabolizing
enzymes need not be made when lactose is not present. | c. | the bacteria will make lactose only in the
presence of the proper enzymes. | d. | milk is not needed for adult humans'
diet. | e. | glucose can substitute for lactose in the diet of intolerant
persons. |
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40.
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Sexual reproduction
a. | leads to uniform characteristics in a population. | b. | results in new
combinations of genetic traits. | c. | produces genetic clones. | d. | requires less tissue
differentiation than asexual reproduction. | e. | produces genetic clones and requires less
tissue differentiation than asexual reproduction. |
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41.
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One species' DNA differs from others in its _____.
a. | sugars | b. | phosphates | c. | base
sequence |
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42.
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When water _________ it is called snow and/or rain.
a. | condenses | b. | precipitates | c. | pontificates | d. | subjugates |
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43.
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Which components of an atom do not have a charge?
a. | electrons | b. | protons | c. | neutrons | d. | electrons and protons | e. | protons and
neutrons |
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44.
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DNA coding regions that affect the same trait are called
a. | homologues. | b. | alleles. | c. | autosomes. | d. | loci. | e. | gametes. |
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45.
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The instructions for growth and development are in
a. | proteins. | b. | carbohydrates | c. | DNA | d. | energy | e. | homeostasis |
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46.
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The observable traits of an organism are its _____ .
a. | phenotype | b. | sociobiology | c. | genotype | d. | pedigree |
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47.
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_____ are to nucleic acids as monomers are to polymers
a. | Nucleotides | b. | RNAs | c. | DNAs | d. | Nitrogenous bases | e. | Nucleosides |
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48.
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These are the primary cellular sites for the recapture of energy from
carbohydrates.
a. | Golgi bodies | b. | ribosomes | c. | mitochondria | d. | lysosomes | e. | endoplasmic
reticula |
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49.
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Genes at one locus that affect the expression of genes at a different locus are
said to be
a. | epistatic. | b. | linked. | c. | codominant. | d. | penetrant. | e. | alleles. |
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50.
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PCR stands for
a. | polymerase chain reaction | b. | polyploid chromosome
restrictions | c. | polygraphed criminal rating | d. | politically correct
research |
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