What cell has a single line of chromosomes?
Germ line cells are haploid, which means they contain a single set of chromosomes. In diploid cells, one set of chromosomes is inherited from the individual’s mother, while the second is inherited from the father. Humans have 46 chromosomes in each diploid cell.
What is it called when chromosomes are lined up?
Metaphase: During metaphase, each of the 46 chromosomes line up along the center of the cell at the metaphase plate.
What is the phase when there is a single line of chromosomes?
The phase is metaphase. It is important that the DNA is duplicated before cell division because this ensures that each daughter cell gets the correct amount of identical DNA.
What is metaphase?
Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. … During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell. During this stage in human cells, the chromosomes then become visible under the microscope.
What is meant by a karyotype?
A karyotype is an individual’s collection of chromosomes. The term also refers to a laboratory technique that produces an image of an individual’s chromosomes. The karyotype is used to look for abnormal numbers or structures of chromosomes.
What is gamete?
Gametes are an organism’s reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome. … These cells develop into sperm or ova.
What does a centrosome look like?
Centrosomes are made up of two, barrel-shaped clusters of microtubules called “centrioles” and a complex of proteins that help additional microtubules to form. This complex is also known as the microtubule-organizing center (MTOC), since it helps organize the spindle fibers during mitosis.
What is the division of cytoplasm called?
Cytoplasmic division or Cytokinesis separates the original cell, its organelles and its contents into two more or less equal halves. While all types of eukaryotic cells undergo this process, the details are different in animal and plant cells.
What are the stages of the cell cycle?
Cell cycle has different stages called G1, S, G2, and M. G1 is the stage where the cell is preparing to divide. To do this, it then moves into the S phase where the cell copies all the DNA.
What happens interphase?
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.
Why is interphase the longest phase?
The synthesis phase of interphase takes the longest because of the complexity of the genetic material being duplicated. Throughout interphase, nuclear DNA remains in a semi-condensed chromatin configuration.