BYS 120-UAH Quiz Answers For Final Exam Prep With
Complete Solutions
What is the scientific question the Mythbusters were trying to answer? - ANSWER If the
5-second rule is valid.
What is their hypothesis? - ANSWER The 5-second rule is valid.
What conditions needed to be kept constant in the experiment? - ANSWER Exposure time
Did this experiment have a control setup? - ANSWER Yes
What did they conclude? - ANSWER Food is contaminated regardless of exposure time.
How could they have improved the experimental design? - ANSWER Used different exposure
time intervals.
How did Hutton's and Lyell's ideas influence Darwin's thinking about evolution? - ANSWER
Hutton and Lyell perceived that changes in Earth's surface can result from slow,continuous
actions still operating at the present time.
How does Lamarckian evolution compare to the Darwinian model? - ANSWER Lamarck
, proposed that species evolve resulting from use or disuse of a trait with immediate
heritability. Darwinian evolution focuses on the success of a trait.
Which of the following is not an observation or inference on which natural selection is based?
- ANSWER Poorly adapted individuals never produce offspring.
The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the
corresponding bones in whales have very different shapes and proportions. However, genetic
data suggest that all three kinds of organisms diverged from a common ancestor at about the
same time. which of the following is the most likely explanation for these data? - ANSWER
Natural selection in the aquatic environment resulted in significant changes to whale forelimb
anatomy.
DNA sequences in many human genes are very similar to the sequences of corresponding
genes in chimpanzees. The most likely explanation for this result is that: - ANSWER Humans
and chimpanzees share a relatively recent common ancestor.
Of all the mutations that occur in a population, why do only a small fraction become
widespread among the population's members? - ANSWER Only a small fraction is
advantageous to population's members.
If p is the frequency of allele A, which parts of the Hardy-Weinberg equation correspond to
the frequency of individuals that have at least one A allele? - ANSWER p + half of 2pq
A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the
Complete Solutions
What is the scientific question the Mythbusters were trying to answer? - ANSWER If the
5-second rule is valid.
What is their hypothesis? - ANSWER The 5-second rule is valid.
What conditions needed to be kept constant in the experiment? - ANSWER Exposure time
Did this experiment have a control setup? - ANSWER Yes
What did they conclude? - ANSWER Food is contaminated regardless of exposure time.
How could they have improved the experimental design? - ANSWER Used different exposure
time intervals.
How did Hutton's and Lyell's ideas influence Darwin's thinking about evolution? - ANSWER
Hutton and Lyell perceived that changes in Earth's surface can result from slow,continuous
actions still operating at the present time.
How does Lamarckian evolution compare to the Darwinian model? - ANSWER Lamarck
, proposed that species evolve resulting from use or disuse of a trait with immediate
heritability. Darwinian evolution focuses on the success of a trait.
Which of the following is not an observation or inference on which natural selection is based?
- ANSWER Poorly adapted individuals never produce offspring.
The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the
corresponding bones in whales have very different shapes and proportions. However, genetic
data suggest that all three kinds of organisms diverged from a common ancestor at about the
same time. which of the following is the most likely explanation for these data? - ANSWER
Natural selection in the aquatic environment resulted in significant changes to whale forelimb
anatomy.
DNA sequences in many human genes are very similar to the sequences of corresponding
genes in chimpanzees. The most likely explanation for this result is that: - ANSWER Humans
and chimpanzees share a relatively recent common ancestor.
Of all the mutations that occur in a population, why do only a small fraction become
widespread among the population's members? - ANSWER Only a small fraction is
advantageous to population's members.
If p is the frequency of allele A, which parts of the Hardy-Weinberg equation correspond to
the frequency of individuals that have at least one A allele? - ANSWER p + half of 2pq
A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the
