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Describe the three key steps of DNA replication in your own words. Include what occurs, where in the cell it occurs and any enzymes that are involved for each step.
topic 7.1 answers. 7.1 DNA Structure and Replication. DNA Structure. Outline how Franklin and Wilkins used X-ray crystallography to elucidate the structure of DNA. ...............................................................................................................................................................................
Questions and model answers on 5.1 Replication & Division of Nuclei & Cells for the CIE A Level Biology syllabus, written by the Biology experts at Save My Exams.
2,332 solutions. Practice questions for this set. Learn. 1 / 7. Study with Learn. The two strands of the double helix separate, or "unzip", allowing two replication forks to form. (Helicase) 1. When a cell copies a DNA molecule: 1. DNA is unzipped by helicase.
The R strain is non-pathogenic (does not cause disease) and is called rough because its outer surface is a cell wall and lacks a capsule; as a result, the cell surface appears uneven under the microscope. The S strain is pathogenic (disease-causing) and has a capsule outside its cell wall.
17 mar 2022 · 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.
12.3 DNA Replication. Summarize the events of DNA replication. Compare DNA replication in prokaryotes with that of eukaryotes. Copying the Code Each strand of the double helix has all the information needed to reconstruct the other half by the mechanism of base pairing.
