Answer:Phenolphthalein is a presumptive test that reacts with the heme molecule present in blood. A positive reaction gives a pink color. While bloodstains normally appear red-brown in color, the color of the substrate or the age of a stain may affect the appearance or visibility of the stain.
Explanation:
QUESTION: How does the electron transport chain use the high-energy electrons from glycolysis and
the krebs cycle?
Answer:
Together with glycolysis, The Krebs cycle, and the electron transport chain release about 36 molecules of ATP per molecule of glucose.The Krebs cycle uses the two molecules of pyruvic acid formed in glycolysis and yields high-energy molecules of NADH and flavin adenine dinucleotide (FADH2), as well as some ATP. The electron transport chain forms a proton gradient across the inner mitochondrial membrane, which drives the synthesis of ATP
Here's what we know:
10,000 individuals
6,840 individuals have blood type AA
2,860 individuals have blood type AB
300 individuals have blood type BB
AA genotype frequency: 68.4%
AB genotype frequency: 28.6%
BB genotype frequency: 3%
The A allele occurs 6,840 * 2 + 2,860 * 1 = <span>16,540 times, which is a frequency of 82.7%, meaning the B allele occurs 3,460 times, which is a frequency of 17.3%. In the next generation, 3%, or 750, individuals would have blood type BB.</span>
Answer: Option D.
Less; at the earliest possible stage.
Explanation:
Protein synthesis refers to the process in which living cells can produce proteins
This occur in two stages;
Transcription and translation.
Transcription refers to transfer of DNA genetic instructional to MRNA in the nucleus of cells.
Translation, after DNA has been transcribed to MRNA, it is then translated to DNA.
When cells intervene in protein synthesis, less energy is used and the cells will regulate the protein synthesis at the earliest possible stage.
The nucleus is labeled M.
