Science Vocab 2 Flashcards
What is the definition of Asexual Reproduction?
Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only and almost never changes the number of chromosomes
What is the definition of Binary Fission?
is a kind of asexual reproduction. It is the most common form of reproduction in prokaryotes and occurs in some single-celled eukaryotes. After replicating its genetic material, the cell divides into two nearly equal sized daughter cells. The genetic material is also equally split.
What is the definition of budding?
a form of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. The new organism remains attached as it grows, separating from the parent organism only when it is mature, leaving behind scar tissue.
What is cancer?
-the disease caused by an uncontrolled division of abnormal cells in a part of the body
What is a cell cycle?
The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication of its DNA (DNA replication) to produce two daughter cells. In bacteria, which lack a cell nucleus, the cell cycle is divided into the B, C, and D periods.
What is a clone?
an organism or cell, or group of organisms or cells, produced asexually from one ancestor or stock, to which they are genetically identical.
What is cytokinesis?
the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
What is the definition of fragmentation?
Fragmentation or clonal fragmentation in multicellular or colonial organisms is a form of asexual reproduction or cloning in which an organism is split into fragments. Each of these fragments develop into mature, fully grown individuals that are clones of the original organism.
What is the definition of interphase?
the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
What is the definition of mitosis?
a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
What is the definition of replication?
the action of copying or reproducing something.
What are spindle fibers?
Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.
What is a spore?
typically one-celled, reproductive unit capable of giving rise to a new individual without sexual fusion, characteristic of lower plants, fungi, and protozoans
What is a stem cell?
Stem cells are a class of undifferentiated cells that are able to differentiate into specialized cell types. Commonly, stem cells come from two main sources: Embryos formed during the blastocyst phase of embryological development (embryonic stem cells) and. Adult tissue (adult stem cells
What is vegetative reproduction?
Vegetative propagation is a form of asexual reproduction of a plant. Only one plant is involved and the offspring is the result of one parent. The new plant is genetically identical to the parent. NATURAL VEGETATIVE PROPAGATION. New plants grow from parts of the parent plant.
