Một phân tử ADN có chiều dài 0.51 micromet. Có tỉ lệ nucleotit loại adenin bằng 38%. Phâm tử ADN này nhân đôi 5 lần. Mỗi phân tử ARN phiên mã 3 lần. Mỗi ARN có 5 riboxom trượt qua không lặp lại. a, tính tổng số ribonucleotit môi trường đã cung cấp để tổng hợp nên toàn bộ ARN. b, trong quá trình dịch mã cos bao nhiêu lượt tARN mang axit amin tới? c, có bao nhiêu axit amin hoàn chỉnh trong toàn bộ phân tử protein?

When plants use sunlight to make food, the energy of sunlight is

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

Astore manager timed janette to see how long it would take her to fold and put away a sweater, a shirt, a pair of pants, and a scarf. it took her 26.1 seconds for the shirt, 24.3 seconds for the sweater, 32.8 seconds for the pants, and 18.2 seconds for the scarf. what was the average time it took janette to fold and put away all four items? during a catered lunch, an average of 4 cups of tea are poured per minute. the lunch will last 2 hours. how many gallons of tea should the caterer bring if there are 16 cups in one gallon?