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Cell Cycle

QuestionAnswer
What is the correct order of phases in mitosis? Prophase, Metaphase, Anaphase, Telophase
During which phase of mitosis do the chromosomes align at the cell's equator? Metaphase
What is the main event occurring during anaphase? Sister chromatids are pulled apart
In which phase does the nuclear envelope break down? Prophase
What is the term for the division of the cytoplasm following mitosis? Cytokinesis
If a cell spends 60% of its time in interphase, what percentage of time does it spend in mitosis? 40%
How many chromosomes are present in a human somatic cell? 46
What is the term for chromosomes that are identical copies of each other? Sister chromatids
What are homologous chromosomes? Chromosomes that carry the same genes but may have different alleles
What is the main purpose of meiosis? Production of gametes
Which phase of meiosis is characterized by the pairing of homologous chromosomes? Prophase I
What is the difference between haploid and diploid cells? Diploid cells have two sets of chromosomes, while haploid cells have one set of chromosomes
In a karyotype, how can you determine the sex of an individual? By identifying the presence of XX or XY chromosomes
What happens during telophase? The nuclear envelope reforms
Which structure holds sister chromatids together? Centromere
What is the significance of the G1 phase in interphase? Cell growth and preparation for DNA replication
During which phase of mitosis do spindle fibers attach to the kinetochores? Metaphase
How many times does a cell undergo division during meiosis? Twice
What is the main purpose of mitosis? To facilitate growth and repair
What is produced during meiosis? Four genetically unique cells
What is a characteristic feature of prophase I in meiosis? Homologous chromosomes pair up and may exchange genetic material
What is the role of the spindle apparatus during mitosis? To separate sister chromatids
If a human cell has 46 chromosomes, how many chromosomes will each daughter cell have after mitosis? 46
What is the term for a cell that contains two complete sets of chromosomes? Diploid
During which phase of the cell cycle does DNA replication occur? S phase
What is the result of cytokinesis in animal cells? Division into two daughter cells
How many chromosomes are present in a human gamete? 23
Created by: ortizal126
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