题目What is the main purpose of mitosis? A. Genetic variation B. Production of gametes C. Growth and repair D. Reduction of chromosome number 相关知识点: 试题来源: 解析 C。原因:有丝分裂的主要目的是生长、修复和无性繁殖。反馈 收藏
What is the end result of meiosis? In what types of organisms does meiosis occur? Why must DNA be packaged into chromosomes before mitosis or meiosis can occur? Meiosis produces which cell type? What must happen before meiosis can begin?
What do chromosomes do in meiosis but not in mitosis? What are the sources of genetic variation during meiosis? What is the parent cell in meiosis? Why does meiosis occur? What is the result when a diploid cell undergoes meiosis? How does meiosis get its diploid cell?
a. What would happen if mitosis were uncontrolled? b. Why are chromosomes important? c. What information do they provide? If, during metaphase, there is a chromatid that is not attached to a spindle fiber, what will happen? a. Mitosis will proceed, with the end result of two cells with...
Why does DNA replication occur prior to mitosis? What happens at a DNA replication fork during replication? What usually happens to the host?s DNA during the lytic cycle? What is the end result of the eukaryotic cell cycle? When does DNA replication occur in the somatic cell cycle?
Mitosis results in identical cells. Though cells may differ from one part of the body to another, it is important for cells of the same type to be identical in order for them to function properly as a whole. New cells are constantly produced to replace the ones in our bodies that die ...
and the cell that’s being divided is always called the “parent cell.” When the process of dividing the parent cell is complete, the result is two “daughter cells.” These cells are called daughter cells because, during mitosis, the genetic material of the parent cell is passed on to ...
Telophase is the final phase of mitosis, and this is when the official division of one cell into two happens. First, the chromosomes relax back into chromatin and a nuclear envelope forms around each chromatin blob, making it into a brand new nucleus. A nucleolus appears in each of these ...
This is now known as the “Hayflick Limit”. Hayflick discovered that your cells go through 3 phases. This first is rapid cell division called ‘mitosis’. The 2nd is where mitosis slows. And the 3rd stage is ‘senescence’ where the cell stops dividing entirely. They remain alive for a ...
How many are in each daughter cell at the end of mitosis? At the end of mitosis, thetwo daughter cellswill be exact copies of the original cell. Each daughter cell will have 30 chromosomes. What is the final product of meiosis in females?