To the heart: pulmonary vein
Away from heart: pulmonary artery
How many chromosomes would be present in a cell after anaphase of Mitosis?
During anaphase, sister chromatids separate to opposite sides of the cell. Therefore the 4n after doubling returns to 2n at each end of the dividing cell after anaphase. But until cytokinesis (1 cell pinching into 2), it's still one cell therefore 4n = 28
Answer:
Topoisomerase
Explanation:
Topoisomerases are enzymes that produce changes in the topology of the DNA during replication, transcription, traduction, or reparation processes. They can cut one or both strands and in order to relieve torsional stresses in the supercoiled structure of DNA. With this, they help to maintain the chromosome's integrity. There are two types of topoisomerases: topoisomerase I (it cuts only one strand of DNA) and topoisomerase II (it is able to cut both strands of DNA).
Fossil fuel<span> is a general term for buried combustible geologic deposits of organic materials, </span>formed<span> from decayed plants and animals that have been converted to crude oil, </span>coal<span>, natural gas, or heavy oils by exposure to heat and pressure in the earth's crust over hundreds of millions of years.</span>
