| 释义 |
Definition of mutagen in English: mutagennoun ˈmjuːtədʒ(ə)nˈmjudədʒən An agent, such as radiation or a chemical substance, which causes genetic mutation. 诱变剂，诱变因素，突变原 Example sentencesExamples - But we can provoke a quicker second hit by treating the animals with a chemical mutagen or a carcinogen.
- Among the mutagens that have been used to induce mutations, chemical mutagens administered in various ways have become especially popular.
- According to experimental data, some pesticides and organic solvents are considered potential chemical mutagens.
- The integrity and stability of the genetic material is continuously being threatened by endogenous and exogenous factors such as chemical mutagens and radiation.
- Detection of low frequency mutations following exposure to mutagens or during the early stages of cancer development is instrumental for risk assessment and molecular diagnosis.
- Exposure to ionizing radiation or environmental mutagens and carcinogens may lead to genomic instability.
- Firstly, risks to the descendants of trial participants because of the inadvertent modification of germ cells are not identical to those for chemical mutagens.
- The purpose of this study was to determine if cooked meat containing only moderate concentrations of the known food mutagens would be detectably mutagenic.
- One possible explanation for these exceptional findings might be contamination of the ethanol with a mutagen.
- Chemicals that cause changes in DNA sequence, or mutations, are called mutagens.
- These mutagens cause point mutations, because they change the genetic code at one point, so changing a protein's amino acid sequence.
- Unlike most chemical mutagens, which tend to cause point mutations, rays tend to produce larger aberrations such as chromosome deficiencies or rearrangements.
- Chemical mutagens and ionizing radiation have long been used as plant mutagens in forward genetic studies.
- We show here that these strains can be used to determine very easily the mutagenic specificity of various mutagens.
- Significantly, their findings were supported by both in vivo and in vitro experiments using reference mutagens.
- The so-called Ames test is based on the fact that most carcinogens are mutagens (substances that damage DNA).
- A host of carcinogens spew forth, along with poisons, mutagens, and mind-altering drugs.
- Cell-culture procedures, chemical mutagens, and radiation all have been applied in what people now refer to as traditional, or conventional, plant breeding for the better part of a century.
- For genetics and breeding, it is fundamentally important to know the germline mutation rate induced by a mutagen.
- Poisons, mutagens, and carcinogens might be created in harmful concentrations.
Derivativesnoun ˌmjuːtəˈdʒɛnɪsɪsˌmjudəˈdʒɛnəsəs mass nounThe production of genetic mutations. in vitro mutagenesis could be used to determine which changes extend lifespan Example sentencesExamples - He was preeminent in the fields of mutagenesis and radiation biology.
- We carried out several rounds of mutagenesis for each chromosome arm.
- We and others have shown that studies of mutagenesis in cultured mammalian cells can help predict carcinogenesis.
adjective mjuːtəˈdʒɛnɪkˌmjudəˈdʒɛnɪk Lead is clearly not a powerful mutagen, nor is it consistently mutagenic among various test systems. Example sentencesExamples - This cell line detects a wide variety of mutagenic lesions, including point mutations, deletions and various types of chromosomal aberrations.
- Substances which allow the Salmonella to grow are considered mutagenic.
- This suggests a mutagenic source different from germ cell replication.
- Many carcinogens and mutagens have to be metabolized before their mutagenic activity can be detected.
noun mjuːtədʒ(ə)ˈnɪsɪti
Origin1940s: from mutation + -gen. Definition of mutagen in US English: mutagennounˈmyo͞odəjənˈmjudədʒən An agent, such as radiation or a chemical substance, which causes genetic mutation. 诱变剂，诱变因素，突变原 Example sentencesExamples - One possible explanation for these exceptional findings might be contamination of the ethanol with a mutagen.
- Poisons, mutagens, and carcinogens might be created in harmful concentrations.
- We show here that these strains can be used to determine very easily the mutagenic specificity of various mutagens.
- Cell-culture procedures, chemical mutagens, and radiation all have been applied in what people now refer to as traditional, or conventional, plant breeding for the better part of a century.
- The purpose of this study was to determine if cooked meat containing only moderate concentrations of the known food mutagens would be detectably mutagenic.
- The so-called Ames test is based on the fact that most carcinogens are mutagens (substances that damage DNA).
- The integrity and stability of the genetic material is continuously being threatened by endogenous and exogenous factors such as chemical mutagens and radiation.
- Among the mutagens that have been used to induce mutations, chemical mutagens administered in various ways have become especially popular.
- Exposure to ionizing radiation or environmental mutagens and carcinogens may lead to genomic instability.
- These mutagens cause point mutations, because they change the genetic code at one point, so changing a protein's amino acid sequence.
- Chemicals that cause changes in DNA sequence, or mutations, are called mutagens.
- Detection of low frequency mutations following exposure to mutagens or during the early stages of cancer development is instrumental for risk assessment and molecular diagnosis.
- But we can provoke a quicker second hit by treating the animals with a chemical mutagen or a carcinogen.
- Firstly, risks to the descendants of trial participants because of the inadvertent modification of germ cells are not identical to those for chemical mutagens.
- A host of carcinogens spew forth, along with poisons, mutagens, and mind-altering drugs.
- Significantly, their findings were supported by both in vivo and in vitro experiments using reference mutagens.
- For genetics and breeding, it is fundamentally important to know the germline mutation rate induced by a mutagen.
- Chemical mutagens and ionizing radiation have long been used as plant mutagens in forward genetic studies.
- Unlike most chemical mutagens, which tend to cause point mutations, rays tend to produce larger aberrations such as chromosome deficiencies or rearrangements.
- According to experimental data, some pesticides and organic solvents are considered potential chemical mutagens.
Origin1940s: from mutation + -gen. |