20 Questions
What is the primary function of the centromere in eukaryotic cell division?
To hold the two sister chromatids together
During which phase of the cell cycle do the chromosomes condense and prepare for cell division?
Prophase
What is the term for the entire process of cell division, including both mitosis and cytokinesis?
M phase
What is the purpose of the spindle microtubules during mitosis?
To control chromosome movement during mitosis
During which phase of mitosis do the sister chromatids separate and move to opposite ends of the cell?
Anaphase
What is the term for the process by which animal cells divide their cytoplasm during cytokinesis?
Cleavage
What is the purpose of the kinetochores during mitosis?
To attach the spindle microtubules to the chromosomes
During which phase of the cell cycle does the cell grow and prepare for cell division?
Interphase
What is the term for the structure formed by the replication of the centrosome during interphase?
Aster
What is the result of the separation of sister chromatids during anaphase?
Two identical groups of chromosomes
What is the main difference between mitosis and meiosis?
Mitosis conserves the number of chromosome sets, while meiosis reduces the number of chromosome sets
What is the purpose of independent assortment of chromosomes?
To ensure that each gamete receives a unique combination of chromosomes
During which stage of meiosis do homologous chromosomes separate?
Anaphase I
What is the result of crossing over in meiosis?
The exchange of genes between homologous chromosomes
What is the term for the union of gametes (sperm and egg) resulting in a zygote?
Fertilization
What is the main difference between prophase I of meiosis and prophase of mitosis?
Synapsis and crossing over occur in prophase I of meiosis
What is the term for the display of chromosomes in a cell?
Karyotype
What is the diploid number of chromosomes in human somatic cells?
46
During which stage of meiosis do sister chromatids separate?
Anaphase II
What is the term for the process by which the number of chromosomes is reduced from two sets to one set?
Meiosis
This quiz covers the principles of cell division, molecular mechanisms of mitosis and meiosis, and the key roles of cell division in early embryogenesis. Learn about the events that characterize each phase of meiosis and cell division during C.elegans embryogenesis.
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