David Lloyd (c. 1938 - 30 May 2006) was a New Zealand molecular biologist and the seventh New Zealander to be elected as a fellow of the Royal Society in London. He did pioneering work on the theory of plant reproduction. 1938 (MCMXXXVIII) was a common year starting on Saturday (link will take you to calendar). ... May 30 is the 150th day of the year in the Gregorian calendar (151st in leap years). ... 2006 (MMVI) is a common year starting on Sunday of the Gregorian calendar. ... Molecular biology is the study of biology at a molecular level. ... The premises of the Royal Society in London (first four properties only). ... Plant sexuality deals with the wide variety of sexual reproduction systems found across the plant kingdom. ...

In December of 1992, Lloyd fell victim to poisioning by acrylamide, a common laboratory chemical. As a result, he laid in a coma for three months and he was left blind, mute, and quadriplegic. His former lover and fellow molecular biologist Vicki Calder was tried twice for his attempted murder. The first trial ended with a hung jury and the second acquitted her. The chemical compound acrylamide (acrylic amide) has the chemical formula C3H5NO and structure Its systematic name is 2-propenamide. ... In medicine, a coma (from the Greek koma, meaning deep sleep) is a profound state of unconsciousness. ... Quadriplegia is caused by damage to the spinal cord at a high level (e. ... A hung jury is a jury whose required majority cannot reach or agree upon a unanimous verdict after an extended period of deliberation and is deadlocked with irreconcilable differences of opinion. ...

Research

Lloyd's major contribution to botany was in the field of plant reproduction. He discovered that plants should be treated differently genetically than mammals owing to their genome structure. Whereas mammals have male and female genomes (X and Y chromosomes), Plants have both male and female components to their genome. Pinguicula grandiflora Botany is the scientific study of plantlife. ... Plant sexuality deals with the wide variety of sexual reproduction systems found across the plant kingdom. ... Orders Subclass Multituberculata (extinct) Plagiaulacida Cimolodonta Subclass Palaeoryctoides (extinct) Subclass Triconodonta (extinct) Subclass Eutheria (excludes extinct ancestors) Afrosoricida Anagaloidea (extinct) Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Dinocerata (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata (extinct) Perissodactyla Pholidota Plesiadapiformes... In biology the genome of an organism is the whole hereditary information of an organism that is encoded in the DNA (or, for some viruses, RNA). ... This article is about the biological chromosome. ...

Lloyd's theory was that a given plant could be considered to be a certain percentage male and a certain percentage female, with the exact proportion differing among individual plants.

External links

• New Zealand Herald obituary
• Acrylamide poisoning trial
• Lloyd's 1980 publication: A quantitative method for describing the gender of plants