Answer:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
If each subunit of a hemoglobin protein molecule carries a heme group and a hemoglobin protein molecule is made of four subunits, two α and two β, we can simply multiply four (number of heme groups that can be found in one hemoglobin protein molecule) by three (number of hemoglobin protein molecules considered). 4×3=12
There are twelve heme groups in three hemoglobin protein molecules.
Answer:
The activation of DNA synthesis may result from the stimulatory activity of one or more cytoplasmic factors and In fusions of cells in G2 and S, however, nuclei continue their previous activities,
Explanation:
The answer is DNA because genotype is the genes of an organism and genes = DNA.
