Bio 182 Exam 1 ASU (Eagle) Questions
with Correct Answers
Treatment group - ANSWERSindividuals who receive treatment
Control group - ANSWERSindividuals who do not receive treatment
Independent variable - ANSWERSwhat is being changed in the experiment
Dependent variable - ANSWERSwhat response is measured
Replication - ANSWERSmultiple individuals treated identically, reduces likelihood of
results being due to chance
Sample size - ANSWERSthe number of individuals in a group
Verbal Model - ANSWERSA simple description of a relationship EX, smoking causes
cancer
Mathematical model - ANSWERSInvolves an equation that provides information for a
relationship
Creationism - ANSWERSSpecies created by a god
Theistic evolution - ANSWERSevolution guided by a god
Natural evolution - ANSWERSevolution by natural processes
Lamarck's big idea was "_________________" changes during an organism during its
lifetime are passed on to it's offspring, this model was refuted by experimentation but
influence darwins ideas about evolution - ANSWERSinheritance of required
characteristics
Evolution by natural selection - ANSWERSprocess where organisms with better traits
suited to their environment are more likely to survive and reproduce
Artificial selection - ANSWERSprocess in which humans breed organisms with
favorable traits to create offspring with favorable traits
There are two assumptions necessary for natural selection to occur: organisms must
possess __________ differences and certain organisms reproduce __________
offspring than others - ANSWERSheritable, more
, Heritability - ANSWERS% of phenotypic variation determined by the additive effects of
alleles
Discrete traits - ANSWERSonly have two or three different phenotypes
Continuous traits - ANSWERShave many different phenotypes
Random mutation - ANSWERSthe idea that mutations are not trying to supply an
organism with what they need
Blending inheritance - ANSWERSthe idea that phenotypes blend during reproduction
Evidence against blending inheritance - ANSWERSif blending inheritance was accurate
we would eventually run out of variation in any given population
Mendelian inheritance - ANSWERSindependently separated particles from parents, and
offspring show certain ratios of phenotypes depending on weather the inherited particles
are dominant or recessive
Independent assortment - ANSWERSmendelian principle stating alleles of genes are
sorted into gametes (sperm and eggs) independently from each other with an equal and
random chance of either allele going into each gamete
Incomplete dominance - ANSWERSwhen two alleles for a trait are both partially
expressed resulting in an intermediate phenotype
Dominant - ANSWERSwhen only one copy of an allele is required to express the
phenotype
Codominance - ANSWERSboth alleles are being expressed equally in the phenotype
showing distinct traits from both parents
Recessive - ANSWERSwhen two alleles are needed to be expressed in the phenotype
What happens to enzyme and protein expression in a heterozygote - ANSWERSwhen a
organism inherits two different alleles for a gene the enzyme and protein expression will
typically be an intermediate be an intermediate level between the expression levels of
the two homozygous genotypes or if one of the alleles is dominant then that allele will
be expressed
Monohybrid cross - ANSWERShybridizing organisms with different phenotypes for a
single trait
Mutations - ANSWERSan error in the sequence of nucleotides when copying DNA
with Correct Answers
Treatment group - ANSWERSindividuals who receive treatment
Control group - ANSWERSindividuals who do not receive treatment
Independent variable - ANSWERSwhat is being changed in the experiment
Dependent variable - ANSWERSwhat response is measured
Replication - ANSWERSmultiple individuals treated identically, reduces likelihood of
results being due to chance
Sample size - ANSWERSthe number of individuals in a group
Verbal Model - ANSWERSA simple description of a relationship EX, smoking causes
cancer
Mathematical model - ANSWERSInvolves an equation that provides information for a
relationship
Creationism - ANSWERSSpecies created by a god
Theistic evolution - ANSWERSevolution guided by a god
Natural evolution - ANSWERSevolution by natural processes
Lamarck's big idea was "_________________" changes during an organism during its
lifetime are passed on to it's offspring, this model was refuted by experimentation but
influence darwins ideas about evolution - ANSWERSinheritance of required
characteristics
Evolution by natural selection - ANSWERSprocess where organisms with better traits
suited to their environment are more likely to survive and reproduce
Artificial selection - ANSWERSprocess in which humans breed organisms with
favorable traits to create offspring with favorable traits
There are two assumptions necessary for natural selection to occur: organisms must
possess __________ differences and certain organisms reproduce __________
offspring than others - ANSWERSheritable, more
, Heritability - ANSWERS% of phenotypic variation determined by the additive effects of
alleles
Discrete traits - ANSWERSonly have two or three different phenotypes
Continuous traits - ANSWERShave many different phenotypes
Random mutation - ANSWERSthe idea that mutations are not trying to supply an
organism with what they need
Blending inheritance - ANSWERSthe idea that phenotypes blend during reproduction
Evidence against blending inheritance - ANSWERSif blending inheritance was accurate
we would eventually run out of variation in any given population
Mendelian inheritance - ANSWERSindependently separated particles from parents, and
offspring show certain ratios of phenotypes depending on weather the inherited particles
are dominant or recessive
Independent assortment - ANSWERSmendelian principle stating alleles of genes are
sorted into gametes (sperm and eggs) independently from each other with an equal and
random chance of either allele going into each gamete
Incomplete dominance - ANSWERSwhen two alleles for a trait are both partially
expressed resulting in an intermediate phenotype
Dominant - ANSWERSwhen only one copy of an allele is required to express the
phenotype
Codominance - ANSWERSboth alleles are being expressed equally in the phenotype
showing distinct traits from both parents
Recessive - ANSWERSwhen two alleles are needed to be expressed in the phenotype
What happens to enzyme and protein expression in a heterozygote - ANSWERSwhen a
organism inherits two different alleles for a gene the enzyme and protein expression will
typically be an intermediate be an intermediate level between the expression levels of
the two homozygous genotypes or if one of the alleles is dominant then that allele will
be expressed
Monohybrid cross - ANSWERShybridizing organisms with different phenotypes for a
single trait
Mutations - ANSWERSan error in the sequence of nucleotides when copying DNA
