Sinteza unei enzime implicate în procesul de transcripţie se realizează pe baza informaţiei unui fragment de ADN bicatenar, alcătuit din 150 nucleotide, dintre care 32 conţin adenină. Stabiliţi următoarele: - numărul nucleotidelor cu guanină conţinute de fragmentul de ADN bicatenar (scrieţi toate etapele necesare rezolvării acestei cerinţe);

- numărul legăturilor duble şi al legăturilor triple din fragmentul macromoleculei de ADN bicatenar

Va rog rapid!

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3