genetic effect of radiation
51drug — drug1 /drug/, n., v., drugged, drugging. n. 1. Pharm. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well being. 2. (in federal law) a. any substance… …
52Drug — /droog/, n. Zoroastrianism. the cosmic principle of disorder and falsehood. Cf. Asha. [ < Avestan drauga] * * * I Any chemical agent that affects the function of living things. Some, including antibiotics, stimulants, tranquilizers,… …
53Список награждённых Национальной медалью науки США — Джошуа Ледерберг (справа) получает Национальную медаль науки из рук Президента США Джорджа Буша старшего Список …
54Hematopoietic stem cell transplantation — HSCT redirects here. For the supersonic aircraft, see High Speed Civil Transport. Hematopoietic stem cell transplantation Intervention ICD 9 CM 41.0 MeSH …
55Adaptation — This article is about the evolutionary process. For other uses, see Adaptation (disambiguation). Part of a series on Evolutionary Biology …
56blood disease — Introduction any disease of the blood, involving the red blood cells (erythrocytes (erythrocyte)), white blood cells (leukocytes (leukocyte)), or platelets (platelet) (thrombocytes) or the tissues in which these elements are formed the bone …
57Breast cancer — Classification and external resources Mammograms showing a normal breast (left) and a cancerous breast (right). ICD 10 C …
58Mutagen — In genetics, a mutagen (Latin, literally origin of change) is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of mutations above the natural background level. As many… …
59Doctor (Doctor Who) — This article is about the character of the Doctor. For a more general overview of the series, see Doctor Who. For the current Doctor, see Eleventh Doctor. Doctor Who character …
60Gamma ray — Gamma rays (denoted as gamma;) are a form of electromagnetic radiation or light emission of frequencies produced by sub atomic particle interactions, such as electron positron annihilation or radioactive decay. Gamma rays are generally… …
