Answer the following question given this paragraph: 9.2 | DNA Replication By the end of this section, you will be able to: Explain the process of DNA replication Explain the importance of telomerase to DNA replication Describe mechanisms of DNA repair When a cell divides, it is important that each daughter cell receives an identical copy of the DNA. This is accomplished by the process of DNA replication. The replication of DNA occurs during the synthesis phase, or S phase, of the cell cycle, before the cell enters mitosis or meiosis. The elucidation of the structure of the double helix provided a hint as to how DNA is copied. Recall that adenine nucleotides pair with thymine nucleotides, and cytosine with guanine. This means that the two strands are complementary to each other. For example, a strand of DNA with a nucleotide sequence of AGTCATGA will have a complementary strand with the sequence TCAGTACT (Figure 9.8). Q: During which phase does dna replication occur in the cell cycle? Choices: - resting - gap - mitosis - synthesis A:
synthesis
Answer the following question given this paragraph: All weather takes place in the atmosphere. Nearly all of it in the lower atmosphere. Weather refers to the conditions of the atmosphere at a given time and place. Climate is the average of weather over a long time. Q: Nearly all weather occurs in the lower part of what? Choices: - the mesosphere - the ionosphere - the lithosphere - the atmosphere A:
the atmosphere
Q: Answer the following question given this paragraph: Clouds are classified on the basis of where and how they form. Three main types of clouds are cirrus, stratus, and cumulus. Figure below shows these and other types of clouds. Q: Cirrus, stratus, and cumulus are the main types of what? Choices: - weather - storms - climate - clouds A:
A: clouds
Question: Answer the following question given this paragraph: of pivot point, and so we choose the pivot point to simplify the solution of the problem. Second, the acceleration due to gravity canceled in this problem, and we were left with a ratio of masses. This will not always be the case. Always enter the correct forcesdo not jump ahead to enter some ratio of masses. Third, the weight of each child is distributed over an area of the seesaw, yet we treated the weights as if each force were exerted at a single point. This is not an approximationthe distances r 1 and r 2 are the distances to points directly below the center of gravity of each child. As we shall see in the next section, the mass and weight of a system can act as if they are located at a single point. Finally, note that the concept of torque has an importance beyond static equilibrium. Torque plays the same role in rotational motion that force plays in linear motion. We will examine this in the next chapter. Take-Home Experiment Take a piece of modeling clay and put it on a table, then mash a cylinder down into it so that a ruler can balance on the round side of the cylinder while everything remains still. Put a penny 8 cm away from the pivot. Where would you need to put two pennies to balance? Three pennies?. Q: What plays the same role in rotational motion that force plays in linear motion. Choices: - efficiency - frame - fulcrum - torque A:
Answer: torque
*Question*
Answer the following question given this paragraph: Oceans cover more than 70% of Earth's surface. Oceans hold 97% of the planet's surface water. It's no surprise that the oceans have a big influence on the planet. The oceans affect the atmosphere, climate, and living things. Q: Around what percentage of the earth's surface water is contained in the ocean? Choices: - 92 % - 99% - 86 % - 97% A:
**Answer**
97%
(Q).
Answer the following question given this paragraph: Acids are molecular compounds that dissolve in water to produce hydronium ions and an anion. Q: Acids are molecular compounds that dissolve in water to produce hydronium ions and what else? Choices: - a neutron - a proton - an alkali - an anion A:
(A).
an anion