Tài liệu bai 3 dieu hoa hoat dong gen ppt

... động P các gen cấu trúc Z, Y, A hoạt động phiên mã, dịch mã. IU HO HOT NG GEN ADN Gen Gen điđiềềuuhohoàà(R(R)) Gen Gen vvậậnnhhàànhnhNhNhóómm gen genccấấuutrtrúúccAABBCCOPÊRONOPÊRONCCááccphphầầnnttửửứứccchchếếmARNSự ... pr«tªin2. Sù ®iÒu hoμ ho¹t ®éng cña Operon LacADN Gen Gen điđiềềuuhohoàà(R(R)) Gen Gen vvậậnnhhàànhnhNhNhóómm gen genccấấuutrtrúúccAABBCCOPÊRONOPÊRONCCááccphphầầnnttửửứứccchchếếmARNSự ... w0 h0" alt="" • Good luckĐIỀU HOÀ HOẠT ĐỘNG GEN Bài 3 I. Khái quát về điều ho hoạt động gen - Điều hoà hoạt động gen: Điều hoà lợng sản phẩm do gen tạo ra, giúp tế bào điều chỉnh tổng hợp prôtêin...

... b. Gen tạo tARN mở đầu và gen tạo tARN kết thúc.c. Gen cấu trúc và gen vận hành.d. Gen điều hòa và gen cấu trúc.Trên phân tử ADN, ngoài các gen mã hóa cấu trúc các prôtêin có các gen làm ... gen làm tế bào chỉ tổng hợp prôtêin cần thiết vào lúc cần thiết. Đó là các gen: a. Gen vận hành và gen điều hòa. Gen được điều hòa bởi yếu tố cảm ứnga. Lactose, tryptophanb. Glucose, Lactose, ... NIỆM•Thế nào là điều hòa hoạt động của gen? •Tại sao gene lại có sự đều hòa hoạt động?•Các mức độ điều hòa hoạt động của gen? II. CƠ CHẾ ĐIỀU HÒA HOẠT ĐỘNG GENE 1. CẤU TRÚC OPERON - LAC•Thế...

... một nhóm gen cấu trúc.nhóm gen cấu trúc.D. Vùng khởi động P,vùng vận hành và một D. Vùng khởi động P,vùng vận hành và một nhóm gen cấu trúc.và gen điều hoà Rnhóm gen cấu trúc.và gen điều ... GEN )mới ( Bài 4 : ĐỘT BIẾN GEN ) I- Khái quát về điều hoà hoạt động I- Khái quát về điều hoà hoạt động gen : gen :Điều hoà hoạt động gen chính là điều hoà lượng Điều hoà hoạt động gen ... gia đa dạng gồm : Các gen Thành phần tham gia đa dạng gồm : Các gen cấu trúc, vùng khởi động,vùng kết thúc ,gen tăng cấu trúc, vùng khởi động,vùng kết thúc ,gen tăng cường, gen bất hoạt, và các...

... lời câu hỏi: nêu được 3 cấp độ điều hòa hoạt động gen. I. Khái quát về điều hoà hoạt động gen 1. Khái niệm : điều hoà hoạt động gen chính là điều hoà lượng sản phẩmcủa gen được tạo ra, giúp ... sơ. II Trọng tâm- Cơ chế điều hoà hoạt động gen ở sinh vật nhân sơ III Chuẩn bị- Tranh phóng to sơ đồ các hình 3. 1 – 2a,b sgk- Bản trong hình 3. 1 3. 2 sgkIV. Tiến trình lên lớp1. Kiểm tra ... sự điều hoà hoạt động gen. Hoạt động thầy Hoạt động trò Nội dung- Thế nào là điều hoà hoạt động gen? - Vì sao phải điều hòa hoạt động gen? - Để điều hoà hoạt động của gen, cơ thể sinh vật...

... BÀI 3. ĐIỀU HÒA HOẠT ĐỘNG GEN  Kiểm tra bài cũ. Tại sao phải có sự điều hòa hoạt động gen. Cơ thể có rất nhiều gen, các gen không hoạt động đồng thời tất cả, ... điều hòa hoạt động gen. Khái niệm: Điều hòa hoạt động gen chính là điều hòa lượng sản phẩm do gen tạo ra (ARN, protein…). Điều hòa hoạt động gen là gì. Điều hòa hoạt động gen biểu hiện như ... Câu 3. Môi trường không có cơ chất (lactozơ), gen không hoạt động… Môi trường có cơ chất (lactozơ), làm biến tính protein ức chế…Vùng O của Operon được giải phóng, gen hoạt động …Câu 4.Gen...

... điều hòa hoạt động của gen mà bài hôm nay chúng ta sẽ tìm hiểu) 3. Bài mới: Nội dung Hoạt động của GV và HSI. Khái quát về điều hòa hoạt động gen: Điếu hòa hoạt động của gen chính là điều hòa ... hòa hoạt động của gen ở sv nhân sơ và sv nhân thực.- Rèn luyện kỹ năng quan sát, phân tích sơ đồ và so sánh hoạt động của gen sv nhân sơ và nhân thực.- Thấy được cơ sở khoa học, tính hợp ... – Protein ?- Trong tế bào thì lúc nào gen tạo ra sản phẩm? (lúc cơ thể cần sản phẩm của gen) * Đặt vấn đề: làm thế nào để tế bào có thể điều khiển cho gen hoạt động đúng vào thời điểm cần thiết?...

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... hoạt động gen là điều hoà lượng sản phẩm - Điều hoà hoạt động gen là điều hoà lượng sản phẩm của gen. của gen. - Vd: người có khoảng 25000 gen, chỉ có 1 số gen hoạt đông, phần lớn gen ở trạng ... E.coli gồm A. gen điều hòa (R), nhóm gen cấu trúc (Z, Y, A). B. gen điều hòa (R), vùng khởi động (P), nhóm gen cấu trúc (Z, Y, A). C. vùng khởi động (P), vùng vận hành (O), nhóm gen cấu trúc ... (O), nhóm gen cấu trúc (Z, Y, A). D. gen điều hòa (R), vùng vận hành, nhóm gen cấu trúc (Z, Y, A). Câu 2. Trong cơ chế điều hòa hoạt động gen ở SV nhân sơ, gen điều hòa R có vai tròA. mang...

... BÀI 3. ĐIỀU HÒA HOẠT ĐỘNG GEN  Kiểm tra bài cũ. Tại sao phải có sự điều hòa hoạt động gen. Cơ thể có rất nhiều gen, các gen không hoạt động đồng thời tất cả, ... điều hòa hoạt động gen. Khái niệm: Điều hòa hoạt động gen chính là điều hòa lượng sản phẩm do gen tạo ra (ARN, protein…). Điều hòa hoạt động gen là gì. Điều hòa hoạt động gen biểu hiện như ... động đồng thời tất cả, ở mỗi giai đoạn nhất định, có 1 nhóm gen nhất định hoạt động, các nhóm khác không hoặc hoạt động yếu. VD: Gen tổng hợp các hoocmon sinh dục ở người chỉ bắt đầu hoạt động...

... của môi trường xung quanh. 1. Lịch sử phát triểnLý thuyết điều khiển tự động đã phát triển qua 3 giai đoạn chính.Giai đoạn 1: Cho đến những năm 1940. Trong giai đoạn này, cơ sở lý thuyết điều ... nhiều lĩnh vực để ước lượng trạng thái bên trong của hệ từ tập nhỏ các tín hiệu đo được.Giai đoạn 3: Giai đoạn “điều khiển bền vững hệ đa biến”, được bắt đầu từ những năm 1980. ứng dụng những thành ... và khi truyền dẫn, thông báo những sự cố đa dạng, phức tạp thường xảy ra trong truyền thông. 3. Cơ hội và thách thức Điều khiển hệ hỗn hợp: Để điều khiển hệ này, bộ điều khiển phải có khả...