heteromorphic system and homomorphic system. CallUrl('www>informatics>jax>orgshtml',0), Sterility if testes do not descend during developmentSpermatogenesis occurs in walls of seminiferous tubules (→compartment of testes)Sperm are passively carried to the epididymisNetwork of seminiferous tubules → leads into vas deferensSperm acquire ability to swim and are stored ... CallUrl('www>biologyguide>nethtm',0), Fertility - The ability to produce gametes capable of creating zygotes. inability to create offspring (children) as a result of a procedure—such as tubal ligation Biologics or biologic drugs are products made from living organisms or contain components of living organisms. Sterility can be defined as the freedom from the presence of viable microorganisms. phenotype of individuals heterozygotic for certain types of chromosome aberration; expressed as a reduced number of viable gametes and hence Nonviability of a proportion of gametes or zygotes. Sterile definition, free from living germs or microorganisms; aseptic: sterile surgical instruments. Definition Heterochrony refers to any change in the developmental timing of an organism's growth that results in changes between ancestor and descendant species; or between different members of a … Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. Commercial sterility According to the WHO/FAO, commercial sterility of low-acid food is defined as follows: “Commercial sterility means the absence of microorganisms capable of growing in the Sterility can be defined as absence of viable Microorganism. PRECAUTIONS AGAINST MICROBIAL CONTAMINATION The test for sterility is carried out under aseptic conditions. Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content. PMID 19074311. See more. Learn vocabulary, terms, and more with flashcards, games, and other study tools. An examination of the changes in ANSI/AAMI/ISO 11135:2014, Cantel Medical to Acquire Sterility Assurance Products Division from NAMSA for USD 13.5m, Understanding validation for verification dose maximum sterilization: lower sterilization doses are now available with the VDmax method of validation and may be used as a viable alternative to providing assurance of sterility without using the large sample sizes required by other methods, Crosstex acquires NAMSA's sterility assurance products division: further expands sterility assurance portfolio and broadens market diversification, EFFECTS OF WA CYTOPLASM ON VARIOUS QUALITY CHARACTERISTICS OF RICE HYBRIDS, Cytological Studies of Anther Development of the Double Recessive Genetic Male Sterile Line, ms5ms6, of Upland Cotton (Gossypium hirsutum), Greater arousal in response to expansive female pubic hair is linked to more positive reactions to female sterility among heterosexual men, sternal branches of internal thoracic artery, Sterilising Research and Advisory Council of Australia. Study Force - Problem Solved is the leading provider of online homework help for college and high school students. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Sterility (physiology), an inability of a living organism to effect sexual reproduction Infertility, the condition of a person, animal or plant being unable to bear children, especially through natural means; Sterile Records, a record label formed in London in 1979 by Nigel Ayers and Caroline K of the post-industrial music group Nocturnal Emissions Damage to respiratory cilia may also be acquired rather than inherited and is most commonly linked to smoking cigarettes. sterility – definedas the total absence of microorgan-isms – is not possible for the reason mentioned earlier and thus cannot be guaranteed. Various agents are used as a sterilizing agent such as liquid chemicals or gases, elevated temperature, ionizing radiation. Its deficiency may cause ~TildeLink(), spontaneous abortions and muscle dystrophy. ^ Ramsey, Justin; Schemske, Douglas W. (November 1998). CallUrl('www>biology-questions-and-answers>comhtml',1), In an individual carrying an abnormal number of X chromosomes, cellular mechanisms will inactivate all but one X in each of her cells. Adipose Tissue and Reproduction in Women. Ans. Sterile definition, free from living germs or microorganisms; aseptic: sterile surgical instruments. and other biological agents like prions present in a specific surface, object or fluid, for example food or biological culture media. © W. G. Hale, V. A. Saunders, J. P. Margham 2005 Want to thank TFD for its existence? Side effects of a biologics depend upon the specific biologic drug. See also related terms for inability. The phenotype of individuals heterozygotic for certain types of chromosome aberration; expressed as a reduced number of viable gametes and hence reduced fertility. CallUrl('micro>magnet>fsu>eduhtml',0), Hybrid - The offspring of parents of two different species. In plants this is usually termed self-incompatibility (see incompatibility). […] However, by making it recessive, it can pass to successive generations and only take effect when both parents are carrying it. Transfection, technique used to insert foreign nucleic acid ( DNA or RNA) into a cell, typically with the intention of altering the properties of the cell. "Because temperature had been widely known to affect. Self-sterile definition is - sterile to its own pollen or sperm. CallUrl('www>ukessays>comphp',1), Among the various hypotheses to explain the extinction that closed the Mesozoic era were allergies by dinosaurs to pollen produced by flowering plants, increased radiation levels that led to male dinosaur ~TildeLink(), diseases brought by migrating animals, ... CallUrl('www2>estrellamountain>eduhtml',0), According to Imperial College, if the ~TildeLink() trait was dominant, it wouldn't have much of a chance to spread because it would immediately appear in the next generation and destroy it. CallUrl('www>sparknotes>comkumc>eduhtml',0). Q. sterility meaning: 1. CallUrl('en>wikipedia>orgberkeley>educacomtalkorigins>orghtml',0), Offspring inviability or ~TildeLink():All that courting and mating is wasted if the offspring of matings between the two groups do not survive or cannot reproduce. to assure sterility of the items and the preservation of its important characteristics as a finished sterile product, process intermediate or laboratory aid. habitat isolation b. gamete isolation c. hybrid sterility d. behavioral isolation e. temporal isolation A liger is a cross between a male lion and a female tiger. sterility 1. Transfection, technique used to insert foreign nucleic acid (DNA or RNA) into a cell, typically with the intention of altering the properties of the cell. PMC 2628965 . Get homework help and answers to your toughest questions in biology, chemistry, physics, math, calculus, engineering, accounting, English, writing help, business, humanities, and more. Examples of hybrid sterility in the following topics: Reproductive Isolation. sterility – definedas the total absence of microorgan-isms – is not possible for the reason mentioned earlier and thus cannot be guaranteed. Hybrids are often unable to reproduce, whether because of ill health, deformity, or ~TildeLink(). Self incompatibility is classified into two groups, viz. Biologics treat many conditions, for example, cancers, rheumatoid arthritis, inflammatory bowel disease, MS, psoriasis, lupus, chronic migraine, and hepatitis B. Condition of being aseptic, or free from all living microorganisms. sterilitynoun[U](UNABLE TO PRODUCE) (in animalsand people) the conditionof being unableto produceyoung, or (in plants) the conditionof being unableto produceplantsor crops. The proposed definition of commercial sterility is: The condition achieved by application of heat, irradiation, high-pressure, or other processes, alone or in combination with other ingredients or treatments, to render the product free of microorganisms capable of growing in the product at ; Hybrid individuals in many cases cannot form normally in the womb and simply do not survive past the embryonic stages; this is called hybrid inviability. 2. 2. impotence, sterility - Impotence is the male's inability to copulate or get an erection; sterility is the inability of either a male or female to procreate. Viable - An organism that is able to survive in the environment it is born into. What is what? the inability of some HERMAPHRODITES to reproduce sexually, that is, to form a viable offspring by self-fertilization. ‘In fact, the evolutionary pathway from obligate outcrossing based on self-sterility to predominant self-fertilization is among the most common and widespread trends in flowering plants.’ ‘This was accomplished by isolating single-conidium cultures from each progeny and testing for self-sterility … CallUrl('www>course-notes>orgbiology-online>orgicoachmath>comhtml',0), Symptoms: tall stature (over 6'), may including ~TildeLink(), developmental delay, learning problems. Tubal ligation, also known as “getting your tubes tied,” is a procedure in which a woman’s fallopian tubes are blocked or partially removed, preventing the chance for sperm and eggs to meet. 1. ADVERTISEMENTS: Q. CallUrl('www>biologyreference>comhtml',0), Bohler, Jr., H., Mokshagundam, S. & Winters, S.J. 39. hybrid sterility (noun) a situation in which a mating between two individuals creates a hybrid that is sterile Q. Farlex Trivia Dictionary. Biological Indicators (BIs) are widely used to monitor the efficacy of sterilization processes. The test for sterility is carried out under aseptic conditions. Postzygotic mechanisms include hybrid inviability, hybrid ~TildeLink() and ... CallUrl('www>brightstorm>comgenetics>utah>edubio-medicine>orglike2do>comnet html',0 ) are inherited maternally only occurs after zygote formation ; includes..., i.e postzygotic barrier occurs after zygote formation ; this sterility definition biology organisms that n't! However, by making it recessive, it can pass to successive generations and only take effect both! Or incapable of producing fruit or spores as absence of viable contaminating microorganisms ; aseptic state,.... Of its important characteristics as a sterilizing agent such as liquid chemicals or gases elevated. Animals and people ) the condition of being aseptic, or free from living!, J. P. Margham 2005 Want to thank TFD for its existence the specific biologic drug sterile.