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WorksheetsReview Quiz #1
Total questions: 8
Worksheet time: 11mins
Sickle cell anemia is an inherited blood disorder resulting in abnormal red blood cells. Individuals homozygous recessive (aa) for the sickle cell trait have only defective red blood cells, while individuals heterozygous for the condition have both normal and defective red blood cells. 9% of the African American population is born homozygous recessive (aa) for the disease.
What percentage of African Americans will be heterozygous for sickle cell anemia?
0.09
0.3
0.70
0.42
The theory of natural selection states all of the following except
More individuals are produced each generation that can survive.
Phenotypic variation exists among individuals and the variation is heritable.
Those individuals with heritable traits better suited to the environment will survive.
Individuals with heritable traits less suited to the environment will always become extinct.
All of the following are true about evolution EXCEPT
It is defined as the change of individual organisms overtime
It is a theory that is supported by fossil records.
It is a process driven by natural selection.
It is defined as the change of populations overtime
An amino acids unique properties is highly dependent on its
ability to bond
the number of hydrogen bonds it has
R-group
amino group
Carbon is considered the backbone of all life because of its
ability to bond with other molecules
ability to double bond
unique R-group
number of neutrons
Foods consumed by us are broken down through the process of digestion into macromolecules, which are then broken down further through the process of
apoptosis
cellular respiration
dehydration synthesis
hydrolysis
Monomers that undergo dehydration synthesis are bonded by a ________ bond.
polar
covalent
hydrogen
ionic
Genetic drift can result from a catastrophic event, leading to
increased levels of advantageous traits
decreased levels of advantageous traits
increased levels of genetic variation
decreased levels of genetic variation
