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পরিবেশ কি ডিএনএর (DNA) উপর প্রভাব ফেলে?

ফোরামে প্রশ্ন করুন (Science Forum) Category: Biologyপরিবেশ কি ডিএনএর (DNA) উপর প্রভাব ফেলে?
Profile photo of Rashedul IslamRashedul Islam Staff asked 1 year ago

আমরা জন্মের সময় বাবা-মার কাছ থেকে ডিএনএ পেয়ে থাকি যা আমরা সারাজীবন বহন করি। কিন্তু পরিবেশের প্রভাবেকি ডিএনএর পরিবর্তন হতে পারে? যদি হয় তাহলে কতটুকু সেই পরিবর্তন বা কিভাবে সেটা হয়? 

Profile photo of remonremon replied 5 months ago

Environmental factors such as food, drugs, or exposure to toxins can cause epigenetic changes by altering the way molecules bind to DNA or changing the structure of proteins that DNA wraps around. These structural changes can result in slight changes in gene activity; they also can produce more dramatic changes by switching genes on when they should be off or vice versa.

These changes are heritable, meaning they can be passed on from parent cell to daughter cell within the body, and from parent to child. An extraordinary study of survivors of the Dutch famine during World War II, for example, has shown that the effect of epigenetic changes caused by hunger don’t show up in the survivors’ children, but they do in their children’s children. This perhaps suggests the adage should not merely be, “You are what you eat,” but also, “You are what your grandparents are.”

Profile photo of remonremon replied 5 months ago

*grandparents ate

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