Search Results for: metaphase
Metaphase plate
Definition noun The plane in the equatorial region of the spindle where chromosomes align during cell division (i.e. mitosis... Read More
Metaphase I
Definition noun The second stage in the first meiotic division after prophase I, and highlights the alignment of paired... Read More
Metaphase II
Definition noun The second stage in meiosis II after prophase II, and highlights the alignment of chromosomes along a single... Read More
Prometaphase
Definition noun The phase of mitosis between prophase and metaphase wherein the nuclear envelope breaks down and form... Read More
Sister chromatids
Sister Chromatids Definition Sister chromatids are defined as the two identical copies of a single replicated chromosome... Read More
Chromosome
Chromosomes Definition Chromosomes are thread-like structures present in the nucleus of plant and animal cells. Chromosomes... Read More
Prophase I
Organisms all use mitosis to create more cells in the body. Meiosis, a similar process, is used in some organisms to undergo... Read More
Meiotic spindle
Meiotic Spindle Definition The meiotic spindle refers to the spindle apparatus that forms during meiosis in contrast to... Read More
Cytokinesis
The cell cycle of eukaryotes is a cyclical series of biological events that certain asexual cells go through. The cell cycle... Read More
Demecolcine
Definition noun (cytogenetics) A cytotoxic alkaloid isolated from Colchicum autumnale, and is used as an antineoplast... Read More
Cell division
Cell division is a biological process by which a parent cell duplicates its cell contents and divides to give rise to two or... Read More
Law of Segregation
Mendel’s Laws of Inheritance The father of genetics, Gregor Mendel, reported his findings in 1860 that initially were... Read More
Meiosis and Alternation of Generations
Review of Mitosis: Cell Cycle The cell cycle contains the process in which cells are either dividing or in between... Read More
Anaphase I
Definition noun The third stage in the first meiotic division after prophase I, and highlights the separation of paired... Read More
Prophase II
Definition noun The first stage in meiosis II highlighted by the disintegration of nucleolus and nuclear envelope, the... Read More
Diakinesis
Definition noun The final stage of prophase I of meiosis I in which the chromosomes condense, the nucleolus fragments and... Read More
Meiosis II
Definition The second of the two consecutive divisions of the nucleus of eukaryotic cell during meiosis, and composed of the... Read More
Meiosis – The Genetics of Reproduction
The genetic information found in DNA is essential in creating all the characteristics of an organism. This remains the case... Read More
Cells know when to separate at mitosis
How do cells know when to separate during mitosis? A molecule called BubR1 was found to regulate the timing of the division... Read More
Kinetochore
Definition noun, plural: kinetochores A protein complex that assembles at the centromeric region of the chromosome during... Read More
Anaphase II
Definition noun The third stage in meiosis II after prophase II, and highlights the separation of the sister chromatids of... Read More
Parthenogenesis
To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More
Spindle fiber
Definition noun, plural: spindle fibers Any of a network of filaments that collectively form a mitotic spindle (in... Read More
Independent Assortment
Independent Assortment Definition Independent assortment refers to the alleles or genes that sort into the newly formed... Read More
Mitotic spindle
Definition noun The collective term for all the spindle fibers that form during mitosis Supplement The spindle apparatus is... Read More
Interkinesis
Definition noun Interphase II, i.e. a short resting period occurring between meiosis I and meiosis II Supplement Meiosis is... Read More
Homologous chromosome
A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More
Plant Cells vs. Animal Cells
Plant Cells Most cells are not visible with the naked eye. However, with microscopes of various types, plant cells can be... Read More
Holocentric chromosome
Definition noun, plural: holocentric chromosomes A chromosome in which the entire length of the chromosome seems to act as a... Read More