Name: 
 

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.
 

 1. 
The DNA fragments produced by automated DNA sequencing are identified using
a.
radioactive probes.
b.
laser beams.
c.
ultracentrifugation.
d.
electron microscopy.
e.
restriction enzymes.
 

 2. 
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
 

 3. 
Triglycerides are
a.
carbohydrates.
b.
nucleotides.
c.
proteins.
d.
fats.
e.
amino acids.
 

 4. 
The portion of the DNA molecule that is translated is composed of
a.
introns.
b.
anticodons.
c.
exons.
d.
transcriptons.
e.
both exons and transcriptons but not introns or anticodons.
 

 5. 
Meiosis typically results in the production of
a.
2 diploid cells.
b.
4 diploid cells.
c.
4 haploid cells.
d.
2 haploid cells.
e.
1 triploid cell.
 

 6. 
These are the primary cellular sites for the production of proteins.
a.
Golgi bodies
b.
ribosomes
c.
mitochondria
d.
lysosomes
e.
smooth endoplasmic reticula
 

 7. 
The positive control of the lactose operon in bacteria is
a.
activated by a repressor protein.
b.
independent of glucose concentrations.
c.
activated by a protein known as CAP.
d.
regulated by RNA polymerase.
e.
all of these
 

 8. 
This organelle's appearance has been likened to a stack of flattened sacs.
a.
Golgi body
b.
ribosome
c.
mitochondria
d.
lysosome
e.
vesicle
 

 9. 
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
 

 10. 
Pairing of homologues and crossing over occur during
a.
anaphase I.
b.
metaphase II.
c.
prophase I.
d.
prophase II.
e.
telophase II.
 

 11. 
The chromosomes and genes are actually replicated during
a.
anaphase.
b.
metaphase.
c.
interphase.
d.
prophase.
e.
telophase.
 

 12. 
Flowering Dogwood is most likely to be found in
a.
Temperate Deciduous Forest
b.
Coniferous Forest
c.
Shrubland
d.
Grassland
e.
Tundra
 

 13. 
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.
 

 14. 
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
 

 15. 
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.
 

 16. 
A fatty acid with one or more double bonds in its hydrocarbon chain is said to be
a.
saturated
b.
unsaturated
c.
condenses
d.
hydrolyzed
e.
supersaturated
 

 17. 
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
 

 18. 
Water is an example of a(n)
a.
atom.
b.
ion.
c.
compound.
d.
mixture.
e.
element.
 

 19. 
The chromosomal DNA is duplicate in _____ of meiosis.
a.
prophase I
b.
metaphase I
c.
interphase
d.
prophase II
e.
anaphase II
 

 20. 
Lakes, streams, and oceans are examples of _______
a.
groundwater
b.
surface water
c.
undrinkable water
d.
boiling water
 

 21. 
A gamete affected by nondisjuction would have _____ .
a.
a change from the normal chromosome number
b.
one extra or one missing chromosome
c.
the potential for a genetic disorder
d.
all of the above
 

 22. 
Automated DNA sequencing relies on _____ .
a.
supplies of standard and labeled nucleotides
b.
primers and DNA polymerases
c.
gel electrophoresis and a laser beam
d.
all of the above
 

 23. 
The concept that a set of three nucleotides specifies a particular amino acid provides the basis for
a.
the one gene, one enzyme hypothesis.
b.
the one gene, one polypeptide hypothesis.
c.
the genetic code.
d.
biochemical reactions among nucleic acids.
e.
all of these
 

 24. 
Sperm are formed directly from the maturation of
a.
sperm mother cells.
b.
spermatids.
c.
spermatagonial cells.
d.
primary spermatocytes.
e.
secondary spermatocytes.
 

 25. 
Organelles _____ .
a.
are membrane-bound compartments
b.
are typical of eukaryotic cells, not prokaryotic cells
c.
separate chemical reactions in time and space
d.
all of the above are features of the organelles
 

 26. 
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.
 

 27. 
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
 

 28. 
_____ is a simple sugar (monosaccharide).
a.
Glucose
b.
Sucrose
c.
Ribose
d.
Chitin
e.
both a and c
 

 29. 
In incomplete dominance
a.
one allele is not dominant to another allele.
b.
the genotype can be determined by the phenotype.
c.
the heterozygote is somewhat intermediate to the two homozygotes.
d.
the intermediate phenotype may be the result of enzyme insufficiency.
e.
all of these
 

 30. 
Anticodons pair with _____.
a.
mRNA codons
b.
DNA codons
c.
tRNA anticodons
d.
amino acids
 

 31. 
A mutation is a change in
a.
homeostasis.
b.
the developmental pattern in an organism.
c.
metabolism.
d.
hereditary instructions.
e.
the life cycle of an organism.
 

 32. 
PCR stands for
a.
polymerase chain reaction
b.
polyploid chromosome restrictions
c.
polygraphed criminal rating
d.
politically correct research
 

 33. 
When water _________ it is called snow and/or rain.
a.
condenses
b.
precipitates
c.
pontificates
d.
subjugates
 

 34. 
Cellular pH is kept near a value of 7 because of
a.
salts.
b.
buffers.
c.
acids.
d.
bases.
e.
water.
 

 35. 
Unlike eukaryotic cells, prokaryotic cells _____ .
a.
lack a plasma membrane
b.
have RNA, not DNA
c.
do not have a nucleus
d.
all of the above
 

 36. 
Fluid-filled sacs that may store food or water in cells are called
a.
plastids.
b.
vacuoles.
c.
microvilli.
d.
nucleoli.
e.
Golgi.
 

 37. 
DNA replication requires
a.
free nucleotides
b.
new hydrogen bonds
c.
many enzymes
d.
all of the above
 

 38. 
Assuming complete dominance, the F2 generation following the cross Aa x Aa will show a phenotypic ratio of _____ .
a.
3:1
b.
9:1
c.
1:2:1
d.
9:3:3:1
 

 39. 
The synthesis of an RNA molecule from a DNA template strand is
a.
replication.
b.
translation.
c.
transcription.
d.
DNA synthesis.
e.
metabolism.
 

 40. 
The sister chromatids become separated during ____ of meiosis.
a.
metaphase I
b.
anaphase I
c.
telophase I
d.
anaphase II
e.
prophase II
 

 41. 
For monohybrid experiments, a testcross could result in which of the following ratios?
a.
1:1
b.
2:1
c.
9:3:3:1
d.
1:2:1
e.
3:1
 

 42. 
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
 

 43. 
The use of RFLPs for "genetic fingerprinting" is based on
a.
the type of gel used in electrophoresis.
b.
identical alleles at loci.
c.
differences of locations where enzymes make their cuts.
d.
differences between blood and semen DNA.
e.
bonding of DNA to RNA.
 

 44. 
Hormones may ______ gene transcription in target cells.
a.
promote
b.
inhibit
c.
participate in
d.
both a and b
 

 45. 
Which substance is the most common in cells?
a.
carbohydrates
b.
salts and minerals
c.
proteins
d.
fats
e.
water
 

 46. 
The neutral subatomic particle is the
a.
neutron.
b.
proton.
c.
electron.
d.
neutron and proton.
e.
none of these
 

 47. 
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
 

 48. 
Which components of an atom do not have a charge?
a.
electrons
b.
protons
c.
neutrons
d.
electrons and protons
e.
protons and neutrons
 

 49. 
The spindle apparatus becomes visible during
a.
anaphase.
b.
metaphase.
c.
interphase.
d.
prophase.
e.
telophase.
 

 50. 
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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