Mutagens and carcinogens | Biomolecules | MCAT | Khan Academy
In genetics, a mutagen is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of ... ,Mutagens are chemical compounds or forms of radiation (such as ultraviolet (UV) light or X-rays) that cause irreversible and heritable changes (mutations) in the ... ,A chemical mutagen is a substance that can alter a base that has already been incorporated into DNA and thereby change its hydrogen bonding specificity. ,Mutagen, any agent capable of altering the genetic constitution of a cell by changing the structure of the hereditary material, deoxyribonucleic acid (DNA). ,Anything that causes a mutation (a change in the DNA of a cell). DNA changes caused by mutagens may harm cells and cause certain diseases, such as cancer. ,People receive environmental cues through their five senses, but how do genes sense the environment? Research indicates that genes react to environmental ... ,As interest in the possible relationship between diet an...
In genetics, a mutagen is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of ...
Mutagens are chemical compounds or forms of radiation (such as ultraviolet (UV) light or X-rays) that cause irreversible and heritable changes (mutations) in the ...
A chemical mutagen is a substance that can alter a base that has already been incorporated into DNA and thereby change its hydrogen bonding specificity.
Mutagen, any agent capable of altering the genetic constitution of a cell by changing the structure of the hereditary material, deoxyribonucleic acid (DNA).
Anything that causes a mutation (a change in the DNA of a cell). DNA changes caused by mutagens may harm cells and cause certain diseases, such as cancer.
People receive environmental cues through their five senses, but how do genes sense the environment? Research indicates that genes react to environmental ...
As interest in the possible relationship between diet and cancer has increased in recent years, so have attempts to determine whether chemical carcinogens ...
Apart from the unlikely possibility that there are no environmental human germ cell mutagens, the reasons for the disparity between human and ...
![WHO:柴油廢氣為致癌物 易引發氣喘、肺癌](https://video.ihealth168.com/images/loading.png)
WHO:柴油廢氣為致癌物 易引發氣喘、肺癌
世界衛生組織(WHO)國際癌症研究中心,將柴油引擎廢氣列為致癌物!對此,林口長庚醫院臨床毒物科主任林杰樑醫師表示,根據臨床發現,經常暴露於柴油廢氣環境中,確實容易罹患「氣喘」、肺癌與心血管疾病,...
![專題》聞癌色變! 別讓癌症找上你](https://video.ihealth168.com/images/loading.png)
專題》聞癌色變! 別讓癌症找上你
死亡,雖是人生必經的歷程,然而大家面對死亡議題時,總有強烈的恐懼感,並希望這一天可以晚點到來。在眾多死亡原因當中,癌症蟬聯國人十大死因之首至今已有30年的歷史,去年癌症死亡人數更創下歷年新高,...
![小心!致癌物就在你身邊](https://video.ihealth168.com/images/loading.png)
小心!致癌物就在你身邊
根據衛生福利部在今年6月份公佈去年國人10大死因中,惡性腫瘤-也就是癌症,連續31年蟬聯冠軍,平均每100個人當中,就有28人死於癌症。這個可怕的現象也讓我們不得不去檢視自己的身旁,是不是隱藏著許多致...
![WHO列手機為2B級致癌物 人體致癌證據尚不足](https://video.ihealth168.com/images/loading.png)
WHO列手機為2B級致癌物 人體致癌證據尚不足
fiogf49gjkf0d 網路時代來臨,人人智慧手機不離身,但長期使用手機,會增加罹癌風險嗎?血液腫瘤科醫師指出,手機產生的電磁波功率非常低,在實驗室不會造成DNA的傷害。所以,有關手機電磁波增加癌症或腦瘤的...
![洋芋片含丙烯醯胺致癌物 食藥署訂定指標監控](https://video.ihealth168.com/images/loading.png)
洋芋片含丙烯醯胺致癌物 食藥署訂定指標監控
fiogf49gjkf0d 含有「天門冬醯胺」的食品,在高溫處理下易生成致癌物「丙烯醯胺」。衛福部食品藥物管理署將參考歐盟規定,針對14類高溫處理食品訂出丙烯醯胺殘留指標值,並進行全面監控,提供業者2年改善期。...
![挑月餅、選烤肉 交給「食安5環」來把關](https://video.ihealth168.com/images/loading.png)
挑月餅、選烤肉 交給「食安5環」來把關
fiogf49gjkf0d 烤肉、月餅是國人最夯的中秋應景食品,但近年來食安問題頻傳,許多民眾擔心吃下有毒物。食藥署北區管理中心主任邱秀儀建議民眾,選購低熱量、零反式脂肪的月餅,烤肉食材優先挑選有認證標章及...
![中秋烤肉,不想大口吃進致癌物?從竹籤、木炭下手,家醫科醫師教你6招小撇步](https://video.ihealth168.com/images/loading.png)
中秋烤肉,不想大口吃進致癌物?從竹籤、木炭下手,家醫科醫師教你6招小撇步
中秋節快到了,又是闔家歡聚的時節!今年中秋Mary要來跟大家分享健康烤肉的小撇步喔!photos放大顯示1.烤肉最好在室外通風良好的地方木炭燃燒時會產生一氧化碳,若烤肉場所通風不良,可能會吸入過量有毒氣體,影...
![伊能靜家族多人罹癌恐有「癌症體質」!營養師授抗癌飲食 這些食物可阻止致癌物吸收](https://video.ihealth168.com/images/loading.png)
伊能靜家族多人罹癌恐有「癌症體質」!營養師授抗癌飲食 這些食物可阻止致癌物吸收
54歲女星伊能靜出道多年是演藝圈著名的凍齡美魔女,日前她前往美國紐約工作,並在社交平台分享出遊照,結果被眾多網友大力稱讚保養得宜,完全是少女般外貌。但其實伊能靜曾自曝家族有多人罹患癌症,自己是「癌症...
![熱鐵鑊易潔鑊忌用凍水沖洗?小心出現3情況致癌物恐停留體內3年](https://video.ihealth168.com/images/loading.png)
熱鐵鑊易潔鑊忌用凍水沖洗?小心出現3情況致癌物恐停留體內3年
用鐵鑊、易潔鑊煮食後,不能馬上沖洗?有腎臟科醫生表示,當鍋具仍是熱騰騰時,馬上用冷水沖洗的話,可能會出現3大情況,導致細菌滋生,甚至釋出毒素、致癌物,可停留在體內超過3年。到底如何清洗鍋具最安全?專...
![蘇丹紅被列「三級致癌物」 免驚! 醫:多吃「這個」加速代謝| CTWANT | LINE TODAY](https://video.ihealth168.com/images/loading.png)
蘇丹紅被列「三級致癌物」 免驚! 醫:多吃「這個」加速代謝| CTWANT | LINE TODAY
醫建議,多吃多吃高纖維蔬果,能夠幫助身體加速代謝,才能將有害物質排出;示意圖,圖中人物與本新聞無關。(圖/freepik)近日「蘇丹紅」毒辣椒粉風暴持續延燒,蝦味先、豬肉乾、八方雲集、維力食品等陸續中鏢...
![【楊桃美食網】中秋節烤雞腿偷吃步](https://video.ihealth168.com/images/loading.png)
![醬料心得-蒜泥(蒜蓉)油膏醬](https://video.ihealth168.com/images/loading.png)
![【一席】李治中:癌症的真相](https://video.ihealth168.com/images/loading.png)