Table of Contents
What happens to a cell when it undergoes meiosis?
During meiosis one cell? divides twice to form four daughter cells. These four daughter cells only have half the number of chromosomes? of the parent cell – they are haploid. Meiosis produces our sex cells or gametes? (eggs in females and sperm in males).
What happens to a cell when it undergoes mitosis?
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division.
What happen during karyokinesis?
Karyokinesis is the step during cell division where the nucleus divides to form two daughter nuclei. It is usually followed by cytokinesis. In this process, the DNA condenses and the chromosomal material divides equally into two halves.
What are the cells that undergo mitosis?
Somatic cells, adult stem cells, and the cells in the embryo are the three types of cells in the body that undergo mitosis. Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells.
Where does mitosis occur in the cell?
somatic cells
Mitosis occurs in somatic cells; this means that it takes place in all types of cells that are not involved in the production of gametes. Prior to each mitotic division, a copy of every chromosome is created; thus, following division, a complete set of chromosomes is found in the nucleus of each new cell.
What happens during interphase of the cell cycle?
During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells.
What happens to the chromosomes during karyokinesis?
Karyokinesis is the division of the nucleus that occurs in four stages. They are prophase, metaphase, anaphase and Telophase. During prophase, the chromatin condenses to form chromosomes. During Telophase, the daughter chromosomes reach the poles and undergo uncoiling to form chromatin threads.
What happens during fertilization?
Fertilization happens when a sperm cell successfully meets an egg cell in the fallopian tube. Once fertilization takes place, this newly fertilized cell is called a zygote. From here, the zygote will move down the fallopian tube and into the uterus. The zygote then burrows into the uterus lining.
What happens to cells after fertilization?
For the first 12 hours after conception, the fertilized egg remains a single cell. After 30 hours or so, it divides from one cell into two. Some 15 hours later, the two cells divide to become four. During the first 8 or 9 days after conception, the cells that will eventually form the embryo continue to divide.