Khi nào các  gen trong Operon-Lac ngừng tổng hợp các loại protein?

A. Protein ức chế ở trạng thái bất hoạt

B. Thừa lactozo trong môi trường

C. Protein ức chế ở trạng thái hoạt động

D. Protein ức chế không gắn với chất cảm ứng

mình đang thi violympic lớp 7 nè

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Cheaper

In Hanoi and North Vietnamese plains, it will be quite cold and foggy. The temperature will be from 14 to 20 degree centigrade. You should wear coat and turn on the motorbike's light when go out. Don't forget to warm the elderly people and the children.

The provinces from Thanh Hoa to Binh Dinh as Nghe An, Ha Tinh and Quang Binh, the weather will be cloudy and wet. Somewhere can be rainy. The low will be 23 and the high will be 30 degree centigrade. When you need go out, you should bring umbrella or raincoat.

In plateau area in central Vietnam, the weather will be very nice. It will be cool and windy a whole day. The low will be 15 and the high will be 20 degree centigrade. This will be a wonderful time to go for a picnic. Hope you will have a happy time with your family and your friends.

With the South, daytime will be sunny and baking hot, the night will be rainy and cold. The low will be 12 and the high will be 40 degree centigrade. With this kind of weather, the children and the elderly people will be sick easily, so you must take care of them carefully.

Chưa chắc đúng.Chỗ in đậm là chỗ đã dc sửa lại

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