Note: These are a few sample questions that you can work through for more practice with genetics and experimental design. You should also review the evolution and experimental design quizzes and exams. These questions do NOT cover all of the material covered this semester. Completion of these questions alone will not be sufficient preparation for the final exam.
Use the diagram below for #1: The arrangement of chromosomes in the diagram below is known as a karyotype.
[pic]
If the chromosomes of a female were arranged like the chromosomes of this male, which of the following would be true when the two karyotypes were compared?
They would be identical (contain the same number and types of chromosomes)
The karyotype of the male would contain one additional chromosome
The karyotype of the female would contain one-half the number of chromosomes
Karyotypes would appear different for one chromosome pair
Certain insects resemble the bark of the trees on which they live. Which statement provides a possible biological explanation for this resemblance?
The insects needed camouflage so they developed protective coloration.
Natural selection played a role in the development of this protective coloration.
The lack of mutations resulted in the protective coloration.
The trees caused mutations in the insects that resulted in protective coloration.
An experiment was carried out to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of two groups of people at rest were measured. Group A was then given caffeinated soda and group B was given caffeine-free soda. One hour after drinking the soda, the pulse rates were measured. The participants in the experiment were all the same age, and they were all given the same amount of soda. The dependent variable in this experiment is the
Type of soda given to each group
Amount of soda given