71 results found

Search Results for: recombination

Recombination DNA repair

Recombination DNA Repair Definition Recombination DNA repair is a biological reparative process in response to DNA damage... Read More

Recombination

Definition noun, plural: recombinations (1) (genetics) The process or act of exchanges of genes between chromosomes,... 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

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

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

Autosome

Autosomes can be described as the non-sex chromosomes that play diverse roles in the human body like harboring genes for the... Read More

Y chromosome

Y chromosome Definition The Y chromosome constitutes one member of the pair of sex chromosomes within an organism, a common... 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

Chromatids

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

Pathogen

What are Pathogens? Pathogens are defined as microscopic organisms, including viruses, bacteria, fungi, and parasites that... Read More

Evolution

Evolution Definition Evolution is defined as a change in the genetic composition of a population over successive... Read More

Reproduction

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

Genetic recombination

Definition noun The process of forming new allelic combination in offspring by exchanges between genetic materials (as... Read More

Pachytene

Definition noun The stage after zygotene and precedes diplotene, and is highlighted by homologous chromosomes shortening,... Read More

Ligase

An enzyme is a catalyst or a chemical produced by cells to speed up a biochemical reaction. It is usually a protein molecule... 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

Fitness

A competing variant's frequency is rising in relation to other competing variants in a population under the biological... Read More

Hot spot

Definition noun, plural: hot spots (1) (pathology) A superficial weeping skin lesion such as in dogs and cats caused by an... 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

Recombinant DNA

Definition noun Genetically-engineered DNA molecule formed by splicing fragments of DNA from a different source or from... Read More

Recon

recon (Science: molecular biology) unit of genetic recombination, the smallest section of a chromosome that is capable of... Read More

Mitosis

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

Metaphase I

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

Sex-determining Region Y gene

Definition noun The gene that codes for the SRY protein, which is associated with the testicular development in many male... Read More

Multiple alleles

Alleles are the pairs of genes occupying a specific spot called locus on a chromosome. Typically, there are only two alleles... Read More

Sex-linked trait

Definition of Sex-Linked Traits A sex-linked trait is an observable characteristic of an organism that is influenced by the... Read More

Genome shuffling

Recombination of whole genomes. One example is protoplasm... Read More

Amoeba

Amoeba Definition The term amoeba, also spelled ameba, describes any cell exhibiting amoeboid movement. Amoeboid movement... Read More

Y linkage

Definition noun, plural: Y linkages (genetics) A form of sex linkage involving particularly the Y chromosome Supplement Sex... Read More

Meiotic spindle

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

Deoxyribonucleic acid

Deoxyribonucleic Acid (DNA) Definition A nucleic acid refers to any of the group of complex compounds made up of linear... Read More

Epistasis

Epistasis Definition What is epistasis in genetics? How does epistasis occur? The epistasis definition, in biology, refers... Read More

Darwinian fitness

Darwinian Fitness Definition Darwinian fitness refers to the measure of an individual organism's or genotype's reproductive... Read More

RDNA

Definition noun, plural: rDNAs An abbreviation for the following terms: ribosomal DNA recombinant DNA Supplement rDNA can... Read More

Hfr bacterium

Definition noun, plural: Hfr bacteria A bacterium that possesses the F factor integrated into the bacterial genome, hence,... Read More

photobiology

Photobiology Definition Photobiology, the biology of light, is a subdiscipline in biology. It focuses on the effects of... Read More

Hfr cell

Definition noun A bacterial cell that possesses the F factor integrated into the bacterial genome, hence, when it conjugates... Read More