You have a microorganism, and you have identified the components below. Which of these components tells you that you have a an a
rchaeon, rather than a bacterium? a. 705 ribosomes
b. Single circular chromosome
c. Plasmids
d. Presence of N-acetyltalosaminuronic acid in the cell wall
The correct answer is d. Presence of N-acetyltalosaminuronic acid in the cell wall.
Explanation:
Bacterial cell wall is made up of peptidoglycan which contains NAG and NAM units joined together by β(1-4) glycosidic linkage but the cell wall of archaea are different from the bacteria and called pseudo-peptidoglycan.
The cell wall of archaea is also called pseudomurein which is also composed of two units, N-acetylglucosamine and N-acetyltalosaminuronic acid and these two components are joined together by β (1-3) glycosidic linkage which is different from linkage in bacteria.
Therefore the correct answer is d. Presence of N-acetyltalosaminuronic acid in the cell wall.
Answer: After mitiosis, each daughter cell will also have 12 chromosomes. Cytokinesis is just the last stage of telophase, where the cell completely forms the two daughter cells. Telophase does not form chromosomes.
The answer is A), B) and F). The main function of the heart is to pump blood throught all the body, and in that way ensure that all the body tissues recives oxygen. Also it moves the blood with out oxygen to the lungs to reoxygenate it.
