Genetic Variation Through Meiosis Quick Check
1. Why is it important for gametes to be haploid?
-They fuse to form a diploid organism so there is the correct number of chromosomes.
2. The inheritance pattern of one gene will not affect the inheritance pattern of another gene. This is known as
-independent assortment.
3. Which of the following is a difference between phase I and phase II of meiosis?
- Phase I results in two haploid daughter cells and phase II results in four haploid daughter cells.
4. During meiosis, non-sister chromatids may exchange sections of DNA leading to genetic diversity. What is this process called?
- crossing-over
5. What is heredity?
-the passing of genetic information from parents to their offspring
6. If an organism has a diploid number of 46, how many chromosomes will each gamete have after meiosis?
- Each gamete will have a haploid number of 23 chromosomes after meiosis.
7. How does meiosis contribute to genetic variation?
- Meiosis contributes to genetic variation through the processes of independent assortment and crossing-over. Independent assortment shuffles the genetic material from different homologous chromosomes into gametes randomly, creating new combinations of alleles. Crossing-over allows for the exchange of genetic material between homologous chromosomes, further increasing genetic diversity.