Explain the significance of complementary base pairing in the conservation of the base sequence of DNA.

1 answer:

5 0

Chargaff's rule states that A (adenine) only bonds with T (thymine) and C (cytosine) only bonds with G (guanine) in a DNA strand. Since DNA replication is semi-conservative, this complementary base pairing allows two of the DNA molecules to be identical to each other as they have the same base sequence. The new strands made are complementary to their template strands and also identical to the other template. Complementary base pairing is important in the conservation of the base sequence of DNA because adenine always pairs with thymine, while guanine pairs up with cytosine. All in all, complementary base pairing has a huge role in the conservation of the base sequence of DNA.

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<h2>Explanation:</h2>

The heart is an organ located at the center of the chest in the thoracic cavity and functions to supply blood to and from tissues giving the tissues oxygen and nutrients while taking away carbon dioxide and waste products. It is divided into 4 chambers and 2 chambers are separated by a muscular wall that prevents mixing of the blood.

<h2>Further Explanation:</h2>

Blood enters the heart via the vena cava which is divided into the superior vena cava that recieves blood from the upper region of the body that includes the head, neck and chest while the inferior vena cava recieves blood from the lower extremeties that includes the legs, the abdomen, the pelvic region and the thighs. The blood is deposited into the right atrium and is de-oxygenated. When it is deposited into the right atrium, the change in volume of the atrium and the expansion causes the valve to open and allow the de-oxygenated blood to flow into the right ventricle. The right ventricle then pumps the blood that is de-oxygenated to the lungs via the pulmonary artery which is the only artery that pumps de-oxygenated blood. In the lungs, carbon dioxide is removed and oxygen added to the blood and is taken to the left atrium which pumps the oxygenated blood to the left ventricle and then the left ventricle pumps the oxygenated blood to the rest of the body. The blood is then again taken through the body via the capillaries and the veins pick up the blood that has been removed of oxygen and added with carbon dioxide and transport the blood back to the heart via the vena cava. It enters the right atrium via both the inferior and superior vena cava and the de-oxygenated blood is circulated again to the lungs for oxygenation from the left ventricle.

<h2>Learn More:</h2>

Learn More about types of circulation: brainly.com/question/1615925

Learn more about the heart: brainly.com/question/12945500

Learn more about the circulatory system: brainly.com/question/919984

Level: High School

Subject: Biology

Topic: The Circulatory System