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Which structure pull the chromosomes to opposite sides of the cell in anaphase?
The mitotic spindle, which is made up of microtubules, is responsible for pulling the chromosomes to opposite sides of the cell during anaphase. Microtubules attach to the chromosomes at the kinetochores and help separate them as the cell prepares to divide.
How many stages of meiosis are there?
There are two stages of meiosis - meiosis I and meiosis II. Meiosis I involves chromosome crossing over and reduction division, while meiosis II involves separation of sister chromatids. Both stages are necessary to produce haploid cells with genetic variation.
How many daughter cells are produced by a single mitotic cell cycle?
Cytokinesis is the splitting of thecytoplasm and this process starts in late Anaphase and completes in Telophase ( last stage) to produce two separate daughter cells.
What does produce mitosis in plant?
One of the most dramatic activities that eukaryotic cells accomplish is division, in which a cell must copy and sort out evenly all of its genetic material (chromosomes), then pinch itself in two. This process, which produces two genetically identical daughter cells from a single parent cell, is called mitosis. No change in chromosome number occurs during mitosis, because one sister chromatid from each chromosome in the parent cell passes into each of the two daughter cells (the sister chromatids separate during anaphase). Mitosis is the method by which the somatic cells of all multicellular organisms multiply (it is the process by which growth occurs). In addition, plants producegametes by mitosis (they make spores by meiosis). Animals produce gametes viameiosis. The stages of mitosis are detailed on the following pages.
What plants produce separate male and female cones that produce microspores and megaspores that develop into male and female gametophytes?
Gymnosperms, such as pine trees, produce separate male and female cones that produce microspores and megaspores. These microspores and megaspores develop into male and female gametophytes, which contain the sperm and egg cells for reproduction.
Chromatids in eukaryotic cells separate during which process?
Chromatids in eukaryotic cells separate during the process of mitosis or meiosis. In mitosis, chromatids separate during anaphase to form individual chromosomes, while in meiosis, chromatids separate during anaphase II to produce haploid daughter cells.
What division of meiosis splits chromosomes?
In anaphase I of meiosis, the homologous pairs of chromosomes separate. Due to DNA replication and crossing over during prophase I, these chromosomes consist of a pair of non-identical sister chromatids. During anaphase II of meiosis, the sister chromatids separate into individual chromosomes.
At what stage does sister chromatid separation occur by mitosis and meiosis?
Sister chromatid separation occurs during anaphase of mitosis and anaphase II of meiosis. In mitosis, sister chromatids are separated to opposite poles of the cell, while in meiosis II, sister chromatids are separated to produce four haploid daughter cells.
Which structure pull the chromosomes to opposite sides of the cell in anaphase?
The mitotic spindle, which is made up of microtubules, is responsible for pulling the chromosomes to opposite sides of the cell during anaphase. Microtubules attach to the chromosomes at the kinetochores and help separate them as the cell prepares to divide.
What are the major events that take place during Meiosis you and Meiosis II?
After the 1st meiotic division there are 2 diploid cells. During Meiosis II, these cells are divided (the same steps as the first Division) - and produce 4 daughter cells. These cells (gametes) have half the number of chromosomes of the original cell and so are called hapliod. Phases: 1) Prophase II - cells contain one of each homologous chromosome - but each are in their replicated form (i.e. 2 chromatids attached together) 2) Metaphase II - Chromosomes align in the middle of the cell 3) Anaphase II - Chromatids separate 4) Telophase II - 4 haploid cells formed
What is the order for the five stages of mitosis?
prophase, metaphase, anaphase then telophase.
What happens in meiosis I that does not occur in meiosis I I?
DNA is copied.
How are mitosis and meiosis similar?
They both have a prophase and an anaphase is for Apex
A cell containing 92 chromatids at metaphase of mitosis would at its completion produce two nuclei each containing how many chromosomes?
46
How many stages of meiosis are there?
There are two stages of meiosis - meiosis I and meiosis II. Meiosis I involves chromosome crossing over and reduction division, while meiosis II involves separation of sister chromatids. Both stages are necessary to produce haploid cells with genetic variation.
If an organism has 16 chromosomes in each of its egg cells what is the diploid number?
EACH CHROMOSOME WILL PRODUCE ONE DUPLICATE CROMATID FOR ITSELF AND THE TWO CHROMATIDS WILL GET ATTACHED TO EACH OTHER THROUGH THE CENTROMERE.SO AFTER DUPLICATOIN 16 SISTER CHROMATIDS WILL BE PRESENT BUT TOTALLY(16 ORIGINAL CHROMATIDS + 16 DUPLICATED CHROMATIDS) 32 CHROMATIDS WILL BE PRESENT
What structure produce energy source for sperm?
what is a molecule
