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.
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
1 answer
1 answer