42 results found

Search Results for: hybrid

Hybrid

Definition noun, plural form: hybrids (reproductive biology) The offspring resulting from the cross between parents of... Read More

Hybridization

Definition noun, plural: hybridizations (reproductive biology) The act or process of mating organisms of different... Read More

Hybrid Sterility

'''hybrid sterility (genetics) It refers to the offspring of a successful primary cross, however the secondary cross would... Read More

Monohybrid

Definition noun, plural: monohybrids (1) Monohybrid cross, i.e. the cross between parents with different alleles for a... Read More

A Look Into Natural Selection and its Mechanisms

Charles Darwin is credited with outlining the fundamentals of evolution. He was a smart and eager pupil and protégé, and... Read More

Mule

Definition noun, plural: mules (zoology) A sterile hybrid offspring, especially of a male donkey and a female horse (botany)... Read More

Allotetraploid

Allotetraploid Definition An allotetraploid is an organism with four sets of chromosomes (4n). This is in contrast to the... Read More

Allopolyploidy

Definition noun (genetics) A type of euploidy wherein the additional set of chromosomes is derived from another species,... 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

Non-Mendelian Inheritance

Reviewed by: Mary Anne Clark, Ph.D.The inheritance patterns seen in Mendel's monohybrid and dihybrid crosses... Read More

Phenotype

Phenotype refers to the observable characteristics of an organism as a multifactorial consequence of genetic traits and... Read More

Crossbreed

Definition noun, plural: crossbreeds The offspring of two purebred individuals from different varieties or breeds verb (1)... Read More

Chimera

When we learned about the basic genetics of biological life, we came to know that almost all the cells of an individual have... Read More

Hydrophilic

Hydrophilic Definition What does a hydrophile (or hydrophilic molecule) mean? If a molecule is “water-loving”, it is... Read More

Backcross

Definition verb To cross a hybrid (i.e. offspring of the F1 generation) with its parent noun (1) The offspring produced... Read More

Apomixis

Apomixis Definition Just like any other organism, the process of reproduction is pivotal to the life cycle of plants. There... 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

First filial generation

Definition noun (genetics) The filial generation comprised of offspring(s) resulting from a cross between two individuals... Read More

Second filial generation

Definition noun (genetics) The filial generation comprised of offspring(s) resulting from a cross between two individuals... Read More

Neisseria flavescens

Definition Noun A gram-negative saprophytic bacterium found normally in the nasopharynx, mouth and upper respiratory tracts... Read More

Myoblast

Myoblast Definition A myoblast is a progenitor cell that when it stops dividing enters myogenesis to develop into a myocyte... Read More

Examples of Natural Selection

Reviewed by: Mary Anne Clark, Ph.D.Darwin's Finches Darwin's finches are an excellent example of the way in... Read More

Selective Breeding

Reviewed by: Mary Anne Clark, PhDThousands of years before Darwin proposed evolution by natural selection and... Read More

Crossbreeding

Definition noun The act or process of producing offspring by mating purebred individuals of different breeds or... Read More

HSV-2- and HIV-1- permissive cell lines co-infected by HSV-2 and HIV-1 co-replicate HSV-2 and HIV-1 without production of HSV-2/HIV-1 pseudotype particles

Jérôme LeGoff1, Hicham Bouhlal1, Maxime Lecerf1, Christophe Klein2, Hakim Hocini1, Ali Si-Mohamed1, Martin Muggeridge3 and... Read More

Mitochondrion

Mitochondrion Definition What are mitochondria? The term “mitochondrion” comes from the two words of the Greek... Read More

Specimen

A specimen is a meticulously selected representative of a group that undergoes rigorous research studies to derive some... Read More

Sterile

Sterile Definition What does sterile mean? In reproductive biology, we can define sterile as an inability to reproduce or... Read More

Reproduction

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

Population

Living organisms typically prefer to live, grow, and survive in groups. Except for some species that prefer solitude - both... Read More

Tree

“The biological diversity is plenty if you look around yourself a little closely; with an eye for life!” … People... Read More

Class

Our earth is home to diverse groups of organisms. These living things exist in the ecosystem. Dating back to the ancient... Read More

Rose

Rose 1. A flower and shrub of any species of the genus rosa, of which there are many species, mostly found in the northern... Read More

Evolution

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

Synkaryon

synkaryon (Science: genetics molecular biology) A somatic hybrid cell in which chromosomes from two different parental cells... Read More

Spirochetes

spirochete A microscopic bacterial organism, a spirochete apperars worm-like, spiral-shaped, and wiggles vigorously when... Read More

Vector

Vector Definition When one thinks of vectors one may think of many different things. This is because a vector can be... Read More

Unicellular

Unicellular organisms are organisms consisting of one cell only that performs all vital functions including metabolism,... Read More

Capsid

Capsid Definition A capsid is a three-dimensional proteinaceous capsular shell around a virus that encloses the viral... Read More

Green revolution

Green revolution advances in genetics, petrochemicals, and machinery that culminated in adramatic increase in crop... Read More