Un investigador analizó una muestra de ADN bacteriano y estableció que el 24% de los nucleótidos correspondía a timina. ¿Cuál es el porcentaje de citosina presente en la muestra de ADN analizada?
A) 24%
B) 48%
C) 76%
D) 52%
E) 26%

Which are observations about the tree on the right ,? check all that apply

This is due ! matching pairs of chromosomes from parents are called a. homologous chromosomes b. heterozygous chromosomes c. herterogenes d. homologous bands

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