If nondisjunction occurs during meiosis II, how many of the final 4 products will be abnormal?
A.
2
B.
4
C.
0
D.
1
E.
3
Cytokinesis is the division of the ___________.
A.
cytoplasm
B.
nucleus
C.
chromosomes
D.
chromatin
E.
zygote
At which stage of mitosis do the chromsomes look like the letter "V"?
A.
prophase
B.
metaphase
C.
anaphase
D.
telophase
E.
cytokinesis
What is the term for the DNA and proteins found within the cell?
A.
chromatin
B.
nucleus
C.
karyotype
D.
centromere
E.
chromatids
F.
none of these
How do proto-oncogenes affect the cell cycle?
A.
stimulate it
B.
inhibit it
C.
they do not affect the cell cycle
D.
they cause it to temporarily pause and then rapidly accelerate
E.
they rapidly accelerate it and then cause it to pause
Which chromosomal mutation will cause Williams syndrome?
A.
deletion
B.
duplication
C.
inversion
D.
translocation
E.
trisomy
Which of the following is not a symptom of Down syndrome?
A.
short stature
B.
eyelid fold
C.
flat face
D.
stubby fingers
E.
indeterminate genitalia
Which of the following is not a characteristic of an autosomal dominant disorder pedigree?
A.
Affected children will usually have unaffected parents.
B.
Heterozygotes are affected.
C.
Two affected parents can produce an unaffected child.
D.
Both males and females are affected with equal frequency.
E.
Two unaffected parents will not have affected children.
When describing someone as "lactose intolerant", you are describing their
A.
genotype.
B.
phenotype.
C.
alleles.
D.
genome.
E.
none of these
Which variable has the stronger influence on the color of an individuals skin?
A.
the individuals phenotype
B.
the amount of time spent in the sun
C.
the amount of time spent in the sun and the individuals genotype
D.
the individuals genotype
E.
neither the sun nor the individuals genotype have any influence on the individuals skin col
Which of the following individuals has a recessive phenotype?
A.
AA
B.
Aa
C.
AaBb
D.
aabb
E.
aAbB
Which of the following disorders is caused by a defect in the production of an elastic connective tissue protein called fibrillin?
A.
cystic fibrosis
B.
Tay-Sachs disease
C.
Marfan syndrome
D.
Huntington disease
E.
sickle-cell disease
Julie has a genetic disorder.
Julie and her husband, Shane, have three children, none of which have the genetic disorder.
How is this disorder most likely inherited?
A.
autosomal dominant.
B.
autosomal recessive.
C.
heterozygous dominant.
D.
The environment influences the trait instead of the genetics.
E.
100% inheritance from the father since the children are not affected.
If you want to know the probability that tossing two coins will result in a particular outcome (two heads, for example), you use the
A.
product rule.
B.
sum rule.
C.
punnett rule.
D.
Bergman's rule.
E.
genetics rule.
The start codon for translation is a
A.
UAG.
B.
UAA.
C.
AAA.
D.
AUG.
E.
AGU.
How does modern day sequencing detect dyes on the nucleotides?
A.
radioactivity
B.
dye terminator chemicals
C.
DNA breakage
D.
laser
E.
by eye
Which of the following is not a requirement for the genetic material of the cell?
A.
It must be able to replicate.
B.
It must be able to store information.
C.
It must be able to undergo mutations.
D.
It must be able to change conformations.
E.
It must be able to provide genetic variability.
Which of the following is not an amino acid?
A.
glycine
B.
tryptophan
C.
alanine
D.
valine
E.
uracil
Which of the following occurs during initiation of translation?
3.0/ 3.0 Points
A.
The ribosome moves down one codon so that the A site is available to receive an incoming tRNA.
B.
The mRNA binds to the smaller of the two ribosomal subunits.
C.
The polypeptide lengthens one amino acid at a time.
D.
The ribosome dissociates into its two subunits and falls off the mRNA.
E.
One of the three stop codons is reached.
Which of the following is a product made from bacteria via recombinant DNA technology that promotes the health of plants?
A.
hepatitis
B vaccine
B.
insulin
C.
clotting factor VIII
D.
growth hormone
E.
frost-minus substances
How much of your DNA is identical to the person who sits next to you in biology class?
A.
1%
B.
50%
C.
90%
D.
99%
E.
99.9%
What is the name of the enzyme that fits new complementary DNA nucleotides into the new strand?
A.
DNA polymerase
B.
DNA helicase
C.
DNA replicase
D.
DNA ligase
E.
DNA telomerase
A patient has a fasting plasma glucose (FPG) test on three successive days and the following results are obtained; 114, 125, and 120 mg/dL.
How would you interpret these results?
A.
These values are normal.
B.
These values indicate impaired glucose uptake by cells.
C.
These values indicate diabetes mellitus.
D.
Unable to determine from these results.
More testing is required.
Excess glucose can be found in the urine _______.
A.
as a result of type 1 diabetes
B.
as a result of type 2 diabetes
C.
when the transport maximum for reabsorption in the kidney tubules is exceeded
D.
all of the above
Which hormone stimulates the breakdown of polymerized glucose?
A.
glycogen
B.
plant starch
C.
insulin
D.
glucagon
Glucose remains elevated in the bloodstream as a result of _______.
A.
type 1 diabetes mellitus and diabetes insipidus
B.
diabetes insipidus
C.
type 1 diabetes mellitus
D.
type 2 diabetes mellitus
Glucose is stored in the human body as _______.
A.
glycogen
B.
glucagon
C.
plant starch
D.
insulin
In this simulation, optical density is measured using a _______.
A.
thermocycler
B.
microscope
C.
spectrophotometer
D.
caliper
A patient has a fasting plasma glucose (FPG) test on three successive days and the following results are obtained; 83, 92, and 98 mg/dL.
How would you interpret these results?
A.
These values are normal.
B.
These values indicate impaired glucose uptake by cells.
C.
These values indicate diabetes mellitus.
D.
Unable to determine from these results.
More testing is required.
Some diabetes mellitus patients inject themselves with insulin multiple times a day.
Why do these patients require insulin?
Briefly explain the difference between type I and type II diabetes mellitus.
Attach your completed Lab Exercise 4, Activity 2: Plasma Glucose, Insulin, and Diabetes Mellitus lab 3.0/ 5.0 Points report (PEX-04-02_FirstnameLastname.pdf) as the answer to this question.