GN FINAL REVIEW (FROM PAST QUIZZES)
A and B are codominant to each other and both are dominant to the O allele. A man has blood type AB. His wife has blood type A. What blood types are possible for their children? Mark all that apply. A B AB O
A, B, AB
Stem cells obtained from an umbilical cord are considered to be ______________.
Adult Stem Cells
A test called the ____ test mixes a chemical, liver extract, and bacteria to determine if the chemical causes mutations.
Ames
Two parents have a trait. Their son does not have the trait, but their daughter does have the trait. Draw the pedigree on a scratch paper and shade in those individuals who have the trait. Which mode(s) of inheritance are consistent with the inheritance pattern of the shaded trait?
Autosomal Dominant X-linked Dominant
A defect that is present at birth is called a _____________?
Congenital Defect
Stem cells obtained by the somatic cell nuclear transfer process are considered to be ______________.
Embryonic Stem Cells
Original Sequence: GCC AGC CAC Mutant Sequence: GCC GAG CCA C What Happened?
Frameshift- Insertion
Select all of the individuals who are expected to be female based on chromosome composition. XXY XO XXX XYY
XO, XXX
What is the sex chromosome composition of an individual who has guevedoces?
XY
A man who has an X-linked dominant allele will pass it on to.......
all of his daughters
Huntington's Disease often shows __________ since the disorder tends to present earlier and progress more rapidly in later generations
anticipation
The charge on DNA molecules is __________.
Negative
In which disorder do affected individuals lack the ability to metabolize dopamine, which leads to shaky movements?
Parkinson Disease
What is true about consanguineous unions?
decreases the proportion of heterozygous individuals in the population, increases the proportion of homozygous genotypes
What occured in this gene sequence? AE.GHMTB and AE.GHB
deletion
responsible for Cri du Chat
deletion
REsponsible for Charcot Marie tooth disease
duplication
A cell is haploid if there is one of each chromosome type in the cell. A cell is diploid if there are two copies of each chromosome type in the cell. Classify the cell tyep below as either Haploid or Diploid. Secondary Spermocyte
haploid
Marfan syndrome shows _____________ because individuals with this disorder have a variety of abnormalities including long limbs, weak connective tissue and abnormal heart values.
Pleiotropy
Embryonic Stem Cells are considered to be ___________.
Pluripotent
Original Sequence: GCC AGC CAC Mutant Sequence: GAC AGC CAC What Happened?
Point mutation
What disorder has affected individuals have an altered perception of reality and loss of touch with reality that is often accompanied by hearing voices?
Schizophrenia
What protein is defective in sickle cell anemia?
hemoglobin
Exposure to radiation is measured in unites called what?
Sieverts
Electrophoresis separates DNA fragments based on their _________.
Size
Which DNA molecule will travel further down the gel?
Small Piece
An agent that causes birth defects is called a ______?
Teratogen
responsible for turner syndrome
monosomic
Is abl an oncogene or tumor supressor gene
oncogene
Is c-myc an oncogene or tumor supressor gene
oncogene
What are the components of DNA?
phosphate, cytosine, thymine, guanine, deoxyribose, adenine
A mutation in which one base pari is substituted for another base pair without increasing or decreasing hte length of the DNA is called a __________ mutation.
point
A __________ condition exists when an organism has more than two copies of each chromosome type.
polyploid
A type of selection that favors heterozygous individuals over homozygous individuals is called?
stabilizing selection
What generally determines the sex of an individual?
the presence of a Y chromosome
DNA _________ the histones before transcription occurs
unwinds from
Which two types of human DNA are most frequently studied when determining evolutionary relationships
y chromosome mitochondrial DNA
Approximately ____% of miscarried fetuses have a chromosome disorder.
50
In a one year period, the average person in the USA receives a radiation dose of approximately what?
6.2 mSV
Approximately how many genes are in the human genome?
20,000-25,000
How many chromosomes are present in a normal human gamete?
23
AabbCcDdEe x AaBBccDDEY How many different gametes can be formed from the individual of genotype AaBBccDDEY? How many different genotypes are expected among the progeny of this cross? What is the probability that the first child from this cross will be a son that shows all of the dominant characteristics?
4 48 3/32
Select parents that would be the parents of a child with phenotype MN, AB+ Mother Type MN, AB- and Father Type M, O- None of these Mother type M, A+ and Father Type N, B- Mother type MN, B+ and Father type N, O+ Mother Type MN, O+ and Father type MN, A-
Mother Type M, A+ and Father type N, B-
Is the sickle cell allele dominant or recessive to the normal allele?
recessive
responsible for burkitts lymphoma
reciprocal translocation
responsible for familial down syndrome
roberstonian tranlocation