Answer:
1.Oceanic crust is constantly formed at mid-ocean ridges, where tectonic plates are tearing apart from each other.The age and density of oceanic crust increases with distance from mid-ocean ridges. Just as oceanic crust is formed at mid-ocean ridges, it is destroyed in subduction zones.
2.The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth's mantle and fit snugly against one another. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other.
3.A place's absolute location is its exact place on Earth, often given in terms of latitude and longitude. For example, the Empire State Building is located at 40.7 degrees north (latitude), 74 degrees west (longitude). It sits at the intersection of 33rd Street and Fifth Avenue in New York City, New York.
Answer:
It is associated with a sliding clamp only on the leading strand.
Explanation:
DNA polymerase must exhibit higher processivity for an efficient DNA replication process. The processivity is imparted by some specific subunits such as the beta subunit of DNA polymerase III. These subunits form a sliding clamp to allow the DNA polymerase to add a large number of nucleotides to the primer before detaching from the template.
Four copies of beta subunits of DNA polymerase III form a donuts shaped structure around each template strand of DNA and serve as a clamp. Each pair of beta subunits associated with core DNA polymerase. The function of these sub-units is to slide along DNA as replication processed. The sliding clamp does not allow the dissociation of DNA polymerase frequently and allows efficient replication of both leading and lagging strands.
Answer:
Vertebrae
Explanation:
The spine has 33 stacked vertebrae (small bones) that form the spinal canal. The spinal canal is a tunnel that houses the spinal cord and nerves, protecting them from injury. Most vertebrae move to allow for a range of motion. The lowest vertebrae (sacrum and coccyx) are fused together and don't move
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