University of Washington, Seattle

BIOLOGY 180

RQ06-Extensions

1)How many chromosomes are in this cell? Are they replicated or unreplicated?

 

 

 

 

 

 

 

 

 

 

 

 

 

2. What is the haploid number of this cell? Is it haploid or diploid?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Which pairs of chromosomes in this cell are homologous?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. If crossing over occurred at the point indicated, what would be the genotypes of the resulting chromosomes be?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5. Which of the following happens during interphase, before mitosis or meiosis?
6. Which of the following is the most important difference between the events of prophase in mitosis versus meiosis I?
7. What is "meta" about metaphase?
8. Why don't alleles from linked genes assort independently, if no crossing over

occurs?

9. Why do alleles from linked genes assort independently, if crossing over DOES

occur?