BIOD 210 Final
Exam Exercise
With Actual
Solutions
Karyotyping is typically done by isolating ________ from a person, staining
them, and taking pictures under a microscope - correct ans:white blood cells
Describe Sickle Cell Anemia - correct ans:People who inherit a mutant copy
of the β-globulin protein from both parents have sickle-cell anemia. The
mutant β-globulin causes the hemoglobin within red blood cells to distort
when the oxygen in the blood is low, and in fact, deforms the cell shape so
much that the distorted cells break very easily. In turn, the loss of the broken
cells lowers the total number of red blood cells, resulting in anemia
In addition, the odd shape of the red blood cells actually causes blockages in
small blood vessels, which causes pain and damage to the brain, heart,
muscles, and kidneys. The condition is especially exacerbated under
atmospheric conditions where oxygen is lower, so people with sickle-cell
anemia can become extremely sick at high altitudes.
Why did Mendel use a pea plant for his studies? - correct ans:- Easy to grow
and breed
- Self-fertilizing
- Easy to cross-breed
, A __________ cross occurs when two pure individual parental strains are
mated that contrast ONLY in the trait that is being observed - correct
ans:monohybrid
In genetics, _______ refers to the original parental generation - correct ans:P1
The first set of offspring from the parents are called the ___ generation,
which stands for ______________. - correct ans:F1 , first filial generation
The term _____________ is used to describe the physical manifestation of any
trait - correct ans:phenotype
In the second generation of a heterozygous monohybrid cross, what
percentage of the offspring have the dominant phenotype? recessive? -
correct ans:75%, 25%
the ratio is 3:1
Define gene - correct ans:a gene is defined as a unit of heredity that is
transferred from a parent to offspring and is held to determine some
characteristic of the offspring
_________ are simply variations of a given gene - correct ans:Alleles
Explain Mendel's 9:3:3:1 dihybrid ratio - correct ans:If F1 generation of a
dihybrid cross is crossed, it will result in the 9:3:3:1 ratio of offspring
The ___________________________________ in genetics states that "the
probability of two or more independent events occurring simultaneously is
equal to the product of their individual probabilities - correct ans:product law
of probabilities
Exam Exercise
With Actual
Solutions
Karyotyping is typically done by isolating ________ from a person, staining
them, and taking pictures under a microscope - correct ans:white blood cells
Describe Sickle Cell Anemia - correct ans:People who inherit a mutant copy
of the β-globulin protein from both parents have sickle-cell anemia. The
mutant β-globulin causes the hemoglobin within red blood cells to distort
when the oxygen in the blood is low, and in fact, deforms the cell shape so
much that the distorted cells break very easily. In turn, the loss of the broken
cells lowers the total number of red blood cells, resulting in anemia
In addition, the odd shape of the red blood cells actually causes blockages in
small blood vessels, which causes pain and damage to the brain, heart,
muscles, and kidneys. The condition is especially exacerbated under
atmospheric conditions where oxygen is lower, so people with sickle-cell
anemia can become extremely sick at high altitudes.
Why did Mendel use a pea plant for his studies? - correct ans:- Easy to grow
and breed
- Self-fertilizing
- Easy to cross-breed
, A __________ cross occurs when two pure individual parental strains are
mated that contrast ONLY in the trait that is being observed - correct
ans:monohybrid
In genetics, _______ refers to the original parental generation - correct ans:P1
The first set of offspring from the parents are called the ___ generation,
which stands for ______________. - correct ans:F1 , first filial generation
The term _____________ is used to describe the physical manifestation of any
trait - correct ans:phenotype
In the second generation of a heterozygous monohybrid cross, what
percentage of the offspring have the dominant phenotype? recessive? -
correct ans:75%, 25%
the ratio is 3:1
Define gene - correct ans:a gene is defined as a unit of heredity that is
transferred from a parent to offspring and is held to determine some
characteristic of the offspring
_________ are simply variations of a given gene - correct ans:Alleles
Explain Mendel's 9:3:3:1 dihybrid ratio - correct ans:If F1 generation of a
dihybrid cross is crossed, it will result in the 9:3:3:1 ratio of offspring
The ___________________________________ in genetics states that "the
probability of two or more independent events occurring simultaneously is
equal to the product of their individual probabilities - correct ans:product law
of probabilities
