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Why do cell enter into meiosis?
Cells enter mitosis to reproduce and grow more cells.
What type of organs are the cell that enter meiosis you found?
Cells that enter meiosis are typically germ cells, which are specialized cells in the body that give rise to eggs or sperm. These cells have the ability to divide and produce gametes through the process of meiosis.
Does meiotic arrest occur in spermatogenesis?
Yes, meiotic arrest can occur in spermatogenesis. Specifically, during spermatogenesis, primary spermatocytes can enter a prolonged meiotic arrest in prophase I, particularly in some species or under certain conditions. This arrest allows for the proper completion of meiosis and subsequent differentiation into sperm cells, ensuring genetic stability and integrity. After this period, the cells can resume meiosis and continue the spermatogenic process.
How many cells enter meiosis 2?
In meiosis II, the cells that enter are the two haploid cells produced in meiosis I. These cells undergo further division to produce a total of four haploid daughter cells, each with half the number of chromosomes as the original parent cell.
The process whereby cells reproduce themselves after becoming damaged diseased or worn out?
Damaged or diseased cell usually don't enter cell division anymore (some viruses can trigger cell division). By die from apoptose, followed by atrophy (natural programmed cell death). Fit cells can divide by mitosis. Or in the case of reproductive cells, meiosis.
Where do b-cells come from?
B-cells originate in the bone marrow from hematopoietic stem cells. In the bone marrow, these stem cells undergo a series of differentiation steps to become mature B-cells, which then enter the circulation to perform their immune functions.
Does the transform ability trigger an enter the battlefield effect?
No, the transform ability does not trigger an enter the battlefield effect.
Do tokens trigger enter-the-graveyard effects when they are destroyed or sacrificed?
Yes, tokens trigger enter-the-graveyard effects when they are destroyed or sacrificed.
What type of cell differentiates in the thymus?
T lymphocytes differentiate in the thymus. Immature T cells enter the thymus from the bone marrow and undergo maturation, selection, and differentiation processes to develop into functional T lymphocytes capable of recognizing specific antigens.
What is the formation of eggs in the ovaries?
The formation of eggs in the ovaries occurs through a process called oogenesis. This process begins with primordial germ cells that develop into oogonia, which undergo mitosis and eventually transform into primary oocytes. These primary oocytes enter meiosis but are arrested in prophase I until puberty, when hormones trigger their maturation. Each menstrual cycle typically results in the completion of meiosis for one primary oocyte, producing a secondary oocyte and a polar body, with the secondary oocyte being released during ovulation.
What is the toxin that T cell secrete to fragment DNA?
T cells can secrete perforin, a protein that creates pores in target cells, allowing granzymes to enter and trigger apoptosis by fragmenting the target cell's DNA. This process is an important mechanism used by T cells to eliminate infected or cancerous cells.
What happens during the go phase of the cell cycle?
During the G0 phase of the cell cycle, cells exit the active cell cycle and enter a quiescent state where they are metabolically active but not actively dividing. Cells may remain in this phase temporarily or for an extended period, depending on the type of cell and environmental conditions. This phase allows for differentiation and specialization of cells, as well as a response to stress or damage. Some cells can re-enter the cell cycle from G0 when stimulated by specific signals.
