Search Results for: drosophila
Embryology
Embryology Definition Embryology is a branch of biology that deals with the topics concerning gamete formation... Read More
Polytene chromosome
polytene chromosome (Science: cell biology) giant chromosomes produced by the successive replication of homologous pairs of... Read More
Parasegment
Definition noun, plural: parasegments The fundamental unit of Drosophila development, which is made up of portions of two... Read More
Inbreeding
Inbreeding is a type of breeding or mating where closely related individuals with a common ancestor produce progenies with... Read More
Pleiotropy
Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More
Chromatids
Chromatid Definition Chromatids are found inside our cells. Chromatids are condensed chromosomes distinguishable during... 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
Neomorphic mutation
Definition noun (genetics) A type of mutation wherein the change in gene leads to an atypically new function of the... Read More
Antennapedia
Definition noun A hox gene first described in Drosophila, which is responsible for the formation and differentiation of the... Read More
Nonsense mutation
A nonsense mutation is the type of point mutation that renders the translation process useless by coding for a stop/nonsense... Read More
Even-skipped
Definition noun (1) One of the pair-rule genes (together with hairy and runt) directly activated by gap gene products... Read More
Chronobiologist
Definition noun, plural: chronobiologists A professional or an expert in the field of chronobiology Supplement A... Read More
Pair-rule gene
Definition noun A segmentation gene whose expression subdivides the embryo into a series of stripes, and sets the boundaries... Read More
Genetic Engineering Advantages & Disadvantages
Through genetic engineering, scientists are able to move desirable genes from one plant or animal to another or... Read More
Maternal-effect gene
Definition noun, plural: maternal-effect genes (1) A gene from the mother's genome in which its phenotype in the zygote is... Read More
Maternal gene
Definition noun, plural: maternal genes (1) A gene from the mother's genome in which its expression on the phenotype of the... Read More
Zygotic-effect gene
Definition noun, plural: zygotic-effect genes (1) Any of the genes expressed in the early embryo. (2) Any of the genes... Read More
Allopatric speciation
We can define speciation as a process by which the novel genetically independent group of organisms are formed through the... 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
Banding pattern
Definition noun, plural: banding patterns (genetics) The characteristic pattern of light and dark transverse bands on a... Read More
Determination
Determination (Science: cell biology) The committment of a cell to a particular path of differentiation, even though there... Read More
Natural selection
Natural Selection Definition What is natural selection in biology? Natural selection is defined as a process in nature... 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
Sexual selection
What is Sexual Selection? The definition of sexual selection is very interesting in biological terms. The sexual selection... 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
Transcriptional silencing
transcriptional silencing (Science: molecular biology) mechanism of transcriptional control where dNA is bundled into... Read More
Centromere
Centromere Definition Centromere is defined as the point of attachment for the sister chromatids generated after DNA... Read More
Egg polarity gene
Definition noun A maternal gene that encodes for products (mRNA or protein) whose spatial distribution in the egg determines... Read More
Fushi tarazu
Definition noun (1) A pair-rule gene which, together with even-skipped, plays a crucial role in the activation of the... Read More