1. Why is it important for gametes to be haploid?
A. It is impossible for them to be diploid because reproduction does not result in diploidy.
B. When gametes are made, the diploid cell splits twice, creating four haploid organisms.
C. Neither parent has the full set of genetic information so each must contribute their half.
D. They fuse to form a diploid organism so that there is the expected number of chromosomes.
2. The inheritance pattern of one gene will not affect the inheritance pattern of another gene. This is known as
A. crossing over.
B. genetic variation.
C. independent assortment.
D. random distribution.
3. Which of the following is a difference between phase I and phase II of meiosis?
A. Phase I results in two haploid daughter cells and phase II results in four haploid daughter cells.
B. Anaphase, metaphase, and telophase only occurs during phase I of meiosis.
C. Genetic variations can only occur during phase II of meiosis.
D. Phase I results in daughter cells with 23 chromosomes each and phase II with 46 chromosomes each.
4. During meiosis, non-sister chromatids may exchange sections of DNA leading to genetic diversity. What is this process called?
A. independent assortment
B. nondisjunction
C. karyotypes
D. crossing-over
5. What is heredity?
A. the exchange of genetic information to create new variation
B. the adaptation of certain individuals that increases their likelihood of survival
C. the passing of genetic information from parents to their offspring
D. the random distribution of chromosomes to produce new genetic combinations
1. C. Neither parent has the full set of genetic information so each must contribute their half.
2. C. independent assortment.
3. B. Anaphase, metaphase, and telophase only occurs during phase I of meiosis.
4. D. crossing-over.
5. C. the passing of genetic information from parents to their offspring.