148 results found

Search Results for: mitosis

Mitosis

Mitosis Definition What is mitosis? In biology, mitosis refers to the cellular process where a single cell divides... 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

Telophase

Telophase is the stage of cell division characterized by the decondensation of chromosomes, and the nuclear envelope... Read More

Metaphase

Metaphase Definition Metaphase is the third phase of mitosis after prophase and before anaphase. Mitosis is the process by... 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

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

Anaphase

In order to keep the process of biological existence ever-going, the phenomenon of cell multiplication is very important.... Read More

Meiosis

What is Meiosis? A simple definition of meiosis would be is this: meiosis is the process of cell division that results in... Read More

Prophase

Prophase is the first stage of mitosis; the very first step in this crucial process of the M-phase of the cell cycle. Now as... Read More

Sister chromatids

Sister Chromatids Definition Sister chromatids are defined as the two identical copies of a single replicated chromosome... Read More

Binary fission

Binary Fission Definition What is binary fission? In biology, binary fission is a type of asexual reproduction where a... Read More

Amitosis

Definition noun, plural: amitoses A direct type of cell division wherein the nucleus and the cytoplasm go through a simple... Read More

Multipolar mitosis

Multipolar mitosis Abberant mitotic figures, where the chromosomal material is pulled to more than two poles. Multipolarity... Read More

Interphase

Interphase is the critical period in the eukaryotic cell cycle characterized by a sequence of events like the G1 phase where... 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

Chromatids

Chromatid Definition Chromatids are found inside our cells. Chromatids are condensed chromosomes distinguishable during... 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

Homologous chromosome

A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More

Chromatin

Chromatin Definition What is chromatin in a cell? Chromatin is a complex of nucleic acids (e.g. DNA or RNA) and proteins... Read More

Centrosome

Centrosome Definition What is a centrosome? The centrosome is considered to be the main microtubule-organizing... Read More

Reproduction

Reproduction Definition Reproduction is a biological phenomenon of producing offspring/s. i.e. more of its kind. Depending... 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

Sexual reproduction

Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More

Cell

A biological cell is a membrane-bound structure that occurs as a functional independent unit of life (such as in unicellular... Read More

Growth

Growth Definition What is growth in biology? Growth is the irreversible increase of an organism’s size over a given... Read More

Zygote

Zygote Definition What is a zygote? A zygote is a fertilized eukaryotic cell. In biology, medical science, and other allied... Read More

Human Reproduction

Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... 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

Spermatid

Spermatid Definition What are spermatids? Let us define spermatid and understand its role in reproduction.A spermatid... Read More

Aster

Definition noun, plural: asters (cell biology) A star-shaped cluster of microtubules radiating from the pericentriolar... Read More

Metaphase plate

Definition noun The plane in the equatorial region of the spindle where chromosomes align during cell division (i.e. mitosis... Read More

Vascular plants

Definition of Vascular plants The term 'vascular' is derived from the Latin word vāsculum, vās, meaning "a container and... Read More

Cell cycle

Definition noun (cell biology) The sequence of growth and division of a cell, and consists of a series of biological... Read More

Meiotic spindle

Meiotic Spindle Definition The meiotic spindle refers to the spindle apparatus that forms during meiosis in contrast to... Read More

Prometaphase

Definition noun The phase of mitosis between prophase and metaphase wherein the nuclear envelope breaks down and form... Read More

Cohesion

Cohesion Definition What is cohesion? Cohesion, in science definition, refers to the state of cohering or sticking together... Read More

Cell differentiation

Cells are often described as the building blocks of life as they are the smallest unit used to build up organisms. Cells can... Read More

Asexual reproduction

Asexual Reproduction Definition What is asexual reproduction? Asexual reproduction is a type of reproduction that does not... Read More

Kinetochore

Definition noun, plural: kinetochores A protein complex that assembles at the centromeric region of the chromosome during... Read More

Centromere

Centromere Definition Centromere is defined as the point of attachment for the sister chromatids generated after DNA... Read More