Question: Which of the following is the first phase of karyokinesis?
A Prophase
B Metaphase
C Anaphase
D Telophase
Answer: Prophase
| Aspect |
Mitosis |
Meiosis |
| Introduction |
· Mitosis produces two genetically identical daughter cells for growth, repair and asexual reproduction. |
· Meiosis produces four genetically diverse daughter cells for sexual reproduction and genetic diversity. |
| No. of divisions |
· One division |
· Two divisions (Meiosis I and Meiosis II) |
| Phases of karyokinesis
|
· Prophase
· Metaphase
· Anaphase
· Telophase
|
· Prophase I
· Metaphase I
· Anaphase I
· Telophase I
· Prophase II
· Metaphase II
· Anaphase II
· Telophase II |
| Chromosome Number |
· Maintained (Diploid ) |
· Reduced by half (Haploid) |
| Genetic Diversity |
· Limited genetic diversity among daughter cells. |
· Significantly increased genetic diversity among daughter cells. |
| Homologous Chromosomes |
· Do not separate in Anaphase |
· Separate in Anaphase I |
| Sister Chromatids |
· Separate in Anaphase |
· Separate in Anaphase II |
| Significance |
· Two genetically identical diploid daughter cells are produced. |
· Four genetically diverse haploid daughter cells are produced. |
