51 results found

Search Results for: anaphase

Anaphase

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

Anaphase I

Definition noun The third stage in the first meiotic division after prophase I, and highlights the separation of paired... 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

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

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

Metaphase

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

Mitosis

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

Law of Segregation

Mendel’s Laws of Inheritance The father of genetics, Gregor Mendel, reported his findings in 1860 that were initially... Read More

Disjunction

Definition noun The normal separation or moving apart of chromosomes toward opposite poles of the cell during cell... Read More

Telophase II

Definition noun The stage in meiosis II after anaphase II, and identified by the complete movement and separation of the... Read More

Telophase I

Definition noun The stage in the first meiotic division after anaphase I, and identified by the complete movement and... Read More

Meiosis I

Definition The first of the two consecutive divisions of the nucleus of eukaryotic cell during meiosis, and composed of the... Read More

Telophase

Definition noun The final phase following anaphase of cell divisions (i.e. mitosis and meiosis), and highlighted by the... 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

Metaphase II

Definition noun The second stage in meiosis II after prophase II, and highlights the alignment of chromosomes along a single... 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

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

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

Definition noun The collective term for all the spindle fibers that form during meiosis Supplement The spindle apparatus is... 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

Prophase II

Definition noun The first stage in meiosis II highlighted by the disintegration of nucleolus and nuclear envelope, the... Read More

Chromosomal mutation

Every living thing is made up of DNA. Our DNA is what makes us unique and different in the world. Our DNA is made up of... 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

Cohesion

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

Mosaicism

Cells often go through many divisions before they become a part of an organism’s genetic make-up. This leaves room for... Read More

Sister chromatids

Definition noun, singular: sister chromatid The two identical strands joined by a common kinetochore as a result of a... Read More

Synaptonemal complex

Definition noun, plural: synaptonemal complexes A complex protein structure that spans the region between the paired... 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

Nondisjunction

Definition noun (In mitosis) The failure of sister chromatids to separate during and after mitosis. (In meiosis) The failure... 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

Kinetochore

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

Metakinesis

metakinesis Metakinesia moving apart; the separation of the two chromatids of each chromosome and their movement to opposite... 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

Exon

When we look at the genome sizes and the organism complexity, it becomes quite confusing at times. This is because we... Read More

Mitotic phase

Definition noun The phase in the life cycle of a cell highlighted by chromosomal separation resulting into two identical... 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

Mitotic spindle

Definition noun The collective term for all the spindle fibers that form during mitosis Supplement The spindle apparatus 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