phenotypic sex determination

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• Sex determination and differentiation (human) — Human sex determination refers to the processes by which an individual becomes either a male or female during development.The Jost ParadigmUnder typical circumstances, the sex of an individual will be determined and expressed through the… …   Wikipedia

• XY sex-determination system — Drosophila sex chromosomes The XY sex determination system is the sex determination system found in humans, most other mammals, some insects (Drosophila) and some plants (Ginkgo). In this system, females have two of the same kind of sex… …   Wikipedia

• Sex differences in humans — Male and female anatomy. Note that these models have had body hair and male facial hair removed and head hair trimmed. A sex difference is a distinction of biological and/or physiological characteristics associated with either males or females of …   Wikipedia

• Cannabis — This article is about the plant genus. For use as a psychoactive drug in the genus, see Cannabis (drug). Cannabis …   Wikipedia

• Polyphenism — A polyphenic trait is a trait for which multiple, discrete phenotypes can arise from a single genotype as a result of differing environmental conditions.DefinitionA polyphenism is a biological mechanism that causes a trait to be polyphenic. For… …   Wikipedia

• Polymorphism (biology) — Light morph Jaguar (typical) Dark morph or melanistic Jaguar (about …   Wikipedia

• heredity — /heuh red i tee/, n., pl. heredities. Biol. 1. the transmission of genetic characters from parents to offspring: it is dependent upon the segregation and recombination of genes during meiosis and fertilization and results in the genesis of a new… …   Universalium

• Intersexuality — is the state of a living thing of a gonochoristic species whose sex chromosomes, genitalia, and/or secondary sex characteristics are determined to be neither exclusively male nor female. An organism with intersex may have biological… …   Wikipedia

• List of genetic engineering topics — NOTOC # 3 end 5 end A Acentric chromosome Achondroplasia Active site Adam s Curse Adaptation Adenine Adenosine Adenosine diphosphate Adenovirus ADP Ala Alagille syndrome Albino Alcoholism Alkylating agent Allele Allele frequency Alleles… …   Wikipedia

• Cytogenetics — A metaphase cell positive for the bcr/abl rearrangement using FISH For the scientific journal of this title, see Cytogenetics and Genome Research. Cytogenetics is a branch of genetics that is concerned with the study of the structure and function …   Wikipedia

• animal breeding — Introduction  controlled propagation of domestic animals in order to improve desirable qualities. Humanity has been modifying domesticated animals to better suit human needs for centuries. Selective breeding involves using knowledge from several… …   Universalium