Search Results for: gene
Genetic drift
Genetic Drift Definition What is genetic drift in simple terms? The simple definition of genetic drift ( also referred to... Read More
SELFISH GENE – selfish to persist
What is a selfish gene? A selfish gene is not a gene that makes an individual selfish. In fact, it may even be involved in... Read More
Genetic diversity
Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More
Genetic Mutations
Reviewed by: Mary Anne Clark, Ph.D. Genetic Mutations Genetic mutations are inherited variations in an... Read More
Gene amplification
Definition noun, plural: gene amplifications The process of duplicating a particular gene, causing the gene to increase in... Read More
CRISPR DIY – biohacking genes at home
Have you ever thought of changing yourself for the better -- genetically-speaking? Lately, CRISPR company has been selling a... Read More
The Gene Pool and Population Genetics
Reviewed by: Mary Anne Clark, Ph.D. The previous tutorial is about adaptive radiation. Adaptive radiation is... Read More
Genetic variability
Genetic Variability Definition Genetic variability refers to the tendency of individual genetic characteristics in a... Read More
Vertical gene transfer
Definition noun (genetics) The transfer of genes from parents to offspring Supplement Gene transfer refers to the movement... Read More
Gene transfer
Definition noun, plural: gene transfers The transfer of genes between organisms Supplement Gene transfer pertains to the... 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
Regeneration in humans – Finding the gene switch
Regeneration in humans is much more limited compared in other animals. Say for instance when one lost a limb, much as well... 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
Gene Action – Operon Hypothesis
Reviewed by: Mary Anne Clark, Ph.D. Some genes are switched on or off depending on environmental conditions. The... Read More
Additive genes
Definition noun Genes that code for the same function or trait and their effects work together on the... Read More
Genetic Information and Protein Synthesis
Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... Read More
Regulatory gene
Definition noun, plural: regulatory genes A gene that is involved in the production of a substance that controls or... Read More
Pleiotropy
Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More
Gene Regulation in Eukaryotes
Reviewed by: Mary Anne Clark, Ph.D. Eukaryotic Gene Structure In prokaryotes the DNA is located in the... 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
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
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
Genetic Control – On and Off Genes
Reviewed by: Mary Anne Clark, Ph.D. This lesson looks at the various factors involved that affect growth and... Read More
Y-linked gene
Definition noun, plural: Y-linked genes A gene located on the Y chromosome Supplement Y chromosome is the male chromosome of... 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
Facultative gene
Definition noun, plural: facultative genes (1) A gene transcribed only when needed or when a cell receives a signal from its... 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
Gene conversion
Definition noun A nonreciprocal gene transfer in which an allele converts the other allele into the same form as its self,... 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
Gene synthesis
Gene synthesis (Science: molecular biology) The complete synthesis of a gene using a dna synthesiser (gene machine), or the... Read More