Mitosis Stages
What is mitosis?
duplication of cells in a persons body done asexually
How many daughter cells are produced in meiosis?
four
What term refers to the process of cell division in somatic (body) cells?
Mitosis
What is the process of cytokinesis?
the process by which a cells cytoplasm physically divides into two separate daughter cells
What is genetic recombination?
When the chromosomes crossover and exchange information to make unique combinations
During which stage of mitosis do sister chromatids separate and move to opposite poles of the cell?
Anaphase
In which phase of meiosis does crossing over occur?
prophase 1
What is the term for the process by which homologous chromosomes exchange genetic material during meiosis?
parent cell
Why do we need our cells to divide and multiply in our bodies?
We need this so that we can develop and grow. We also need it to repair cells and fix damage within limitations. Any one of these is correct
What term refers to the random distribution of homologous chromosomes during meiosis?
Independent assortment
in which phase of mitosis does the nuclear membrane reform around the chromosomes, and the cell begins to split into two?
Telophase
Meiosis results in the production of what type of cells?
gametes
What is the term for the number of chromosomes in a gamete (sperm or egg)?
Haploid meaning that there are half of the chromosomes
What happens during the S phase of interphase?
DNA replication
How does meiosis contribute to genetic variation in sexually reproducing organisms?
Crossing over and independent assortment
What is the name of the structure that pulls chromosomes apart during mitosis?
A spindle fibers
B Stramala
C Abdula
Spindle fibers
What is the difference between meiosis I and meiosis II?
Meiosis I reduces chromosome number, meiosis II separates sister chromatids
What term describes the initial cell that undergoes division in both mitosis and meiosis?
What is the role of the centrosome in cell division?
The centrosomes duplicate before cell division, so they then help to organize the microtubules and the cell division process.
What is the significance of genetic variation in evolution?
Genetic variation fuels evolution via natural selection
During which phase of mitosis do chromosomes condense and become visible under a microscope?
Prophase
In which phase of meiosis does independent assortment of chromosomes occur?
metaphase 1
What is the term for a cell that has two sets of chromosomes, one from each parent?
diploid meaning having both sets of chromosomes allowing the cell to reproduce asexually by duplicating itself... like a cute little clone
In what phase does the nuclear envelope break down to allow the chromosomes to attach to spindle fibers?
Prophase
How does sexual reproduction lead to offspring with a unique combination of traits?
: Sexual reproduction combines genetic material from two parents