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Human Bio Exam 4
For Final
48
Biology
Undergraduate 2
12/08/2010

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Term
STDs are more often asymptomatic in _________ , but can cause Pelvic Inflammatory Disease (PID) and infertility if left untreated.
Definition
Females
Term
Crossing-over is the event that:
Definition
Allows us to check DNA and determine parental lineage
Assures that only identical twins are genetically the same
Can sometimes result in genetic errors that cause complications for the embryo, fetus, or the child once born.
tremendously increases variability in a population
Term
Phenotype refers to:
Definition
Visible traits displayed by an organism and non-visible characteristics such as susceptibility to a disease
Term
Cytokinesis is the:
Definition
Actual division of the cell in either Mitosis or Meiosis
Term
Human cells in interphase have:
Definition
23 homologous pair of chromosomes
Term
As presented in lecture, which of the following statements is true?
Definition
Of the STDs, that we discussed, Chlamydia is the fasted spreading in the US.
Term
The female human autosomal (non-sex) cells in interphase have:
Definition
22 homologous pair of chromosomes plus one non-homologous
23 homologous pair of chromosomes
Term
The cell diagrammed at the right is in: (pairs of sister chromatids lined up side by side at the equator)
Definition
Metaphase 1
Term
The cell diagrammed at the right is in: (sister chromatids lined up vertically at the equator)
Definition
Metaphase
Term
HIV virus can be transmitted by:
Definition
Contact with blood of someone who has been infected with HIV such as from used injection needles ---- Sexual contact with someone who has been infected with HIV
Term
1If Freckles is a dominant trait, given the cross shown in the Punnett Square, the offspring indicated by box(es) ____________ would NOT have freckles.
Definition
lower right-hand box with (ff)
Term
In the same Punnet Square, the chance of a child from these parents having freckles is
Definition
75% FF, Ff, Ff
Term
Which pattern of inheritance is shown in the pedigree provided here;
Skips a generations & Typically Shown by males.
Definition
Sex-linked Recessive
Term
An organism that invades the DNA of the cell, causing the cell to duplicate the organism and thus causing a disease is:
Definition
A virus
Term
An individual with blood type A is traditionally shown as having the following genotype:
Definition
IAi
IAIA
Term
Williams Syndrome is a crossing-over error (deletion) where a portion of a chromosome is missing, which results in:
Definition
the child having excellent musical and verbal abilities
Term
Wavy hair, where Ww is intermediate between WW and ww is considered to be a(n) example of:
Definition
Incomplete dominance
Term
In this basic diagram of DNA, box 1 indicates a(n) (phosphate, pentose suger, nitrogen containing base)
Definition
nucleotide
Term
In this same diagram of DNA, box 2 indicates a(n)
Definition
Nitrogen-containing base
Term
Genotype is
Definition
All of the inherited alleles that make up an organism’s chromosomes
Term
Non-disjunction of X chromosomes may result in a child having XXY, in which case the child has ____________ Syndrome and ________.
Definition
Kleinfelter Syndrome ……………. is male
Term
The organ that makes oxygen available to the fetus is the:
Definition
Placenta
Term
Sickle-Cell Anemia, a disease that can cause internal hemorrhaging when capillaries clog and break, occurs when the individual inherits Homozygous Recessive alleles. However, having the Heterozygous condition for these alleles:
Definition
Allows the individual to better tolerate malaria
Term
Alleles are chromosomal material found:
Definition
at a particular locus on homologous chromosomes.
Term
Huntington Disease, that results in the inability to produce Huntington protein, is a(n):
Definition
Autosomal Dominant Disease
Term
Continued lactation (production of milk) depends on:
Definition
Suckling
Term
Cues that might cause parents to seek, and the medical community to provide genetic testing include:
Definition
Choosing to have a baby when the mother is 45 years or older
Having a family history of an inherited disease
Term
A Sexually Transmitted organism that is an ecto-parasite (found on outside of body) and can be transmitted through shared clothing or bedding is:
Definition
Pubic Lice
Term
The very organized process whereby a cell’s chromosomes replicate and then the cell duplicates itself to create 2 cells identical to the original is:
Definition
Mitosis
Term
The very organized process beginning with chromosome replication and culminating in production of 4 gametes that have half the chromosomal material is
Definition
Meiosis
Term
When alleles from more than one locus, and likely more than one chromosome, contribute to the trait displayed, it is referred to as
Definition
Polygenic Inheritance
Term
Color-blindness and hemophilia are more common in males and often skip a generation, thus these traits are:
Definition
Sex-linked Recessive
Term
If a trait indicated by the letter “m” is determined to be Homozygous Dominant, that trait is exhibited by individuals who have alleles:
Definition
MM and Mm
Term
Inheritance of 2 recessive alleles that cause the baby to lack the enzyme to break down glycosphingolipid is a disease called:
Definition
Tay-Sachs Disease
Term
If a mother has Type AB blood and a father has type O blood, the chance that one of their children can have type O blood is: (Hint: draw a Punnet Square if it will help you, otherwise, use the FOIL method)
Definition
Zero
Term
Using the bookkeeping that we discussed in class, a male who displays a Sex-Linked Recessive trait would be
Definition
XaY
Term
The daughter cell created by ______________ is called a _________________.
Definition
Meiosis II ……………… gamete
Term
The Hepatitis infection that can be transmitted by sexual contact is:
Definition
Hepatitis B Virus
Term
Human Immunodeficiency Virus, the virus that causes HIV, initially invades and takes control of:
Definition
T Lymphocytes
Term
Based on total population, ________________ people in the US have a Non- HIV Sexually Transmitted Infection.
Definition
1 out of 5
Term
Sexually Transmitted Infections that are the hardest to treat are
Definition
Viral
Term
Those who have AIDS (Acquired Immunodeficiency Syndrome) often die of:
Definition
Cancer
Pneumonia
Opportunistic infections
Term
DNA is the acronym for:
Definition
Deoxyribonucleic Acid
Term
For bookkeeping purposes the lower case letter indicates the:
Definition
Recessive allele
Term
The likelihood of a child being born with Down Syndrome is about:
Definition
1 in 900 births
Term
A normal, functioning cell in interphase is said to be
Definition
Diploid
Term
Sexually Transmitted Infections most easily cured by antibiotics are:
Definition
Bacterial
Term
The process when cytoplasm divides into two separate cells is called:
Definition
Cytopkinesis
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