University:
Central Arizona College
Course:
BIO206 | Cell Biology
Academic year:

2023
Views:

252

Pages:

1
Author:

Lucas H.

14. Meiosis and Sexual Reproduc on Comparison of Meiosis with Mitosis: Meiosis and mitosis are dis nct approaches of mobile department. While mitosis eﬀects in two gene cally iden cal diploid daughter cells, meiosis produces four gene cally diverse haploid gametes. Mitosis includes one spherical of department, whereas meiosis includes two rounds: meiosis I and meiosis II. Mitosis occurs in soma c cells, even as meiosis is speciﬁc to germ cells. Importance of Meiosis in Gene c Diversity: Meiosis is important for sexual reproduc on as it generates gene c range thru approaches which include crossing over and independent assortment. During prophase I of meiosis, homologous chromosomes trade gene c fabric, ensuing in new allele combos. This gene c variant is cri cal for evolu on and adapta on. Stages of Meiosis: • Meiosis I: 1. Prophase I: Chromosomes condense, homologous chromosomes pair up and change segments (crossing over). 2. Metaphase I: Homologous chromosomes align at the metaphase plate. 3. Anaphase I: Homologous chromosomes separate and circulate to contrary poles. 4. Telophase I: Two haploid cells are shaped, every with 1/2 the range of chromosomes. • Meiosis II: 1. Prophase II: Chromosomes condense once more, however no crossing over happens. 2. Metaphase II: Chromosomes align on the metaphase plate. 3. Anaphase II: Sister chroma ds separate. 4. Telophase II: Four gene cally speciﬁc haploid cells are produced. Conclusion: Meiosis is cri cal for sexual replica, making sure gene c range that's essen al for species survival and evolu on.