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Stack #60388
| question | answer |
|---|---|
| The process by which DNA is copied in a cell before a cell divides by mitosis,meiosis, or binary fission. | DNA replication |
| 2 nucleotide strands of the original double helix separate along the strands. Because the 2 strands are complimentary, each strand serves as a template to make a new complimentary strand during this. | DNA replication |
| Which step of transcription? RNA polymerase binds to the gene's promoter. The two DNA strands unwind and seperate. | step 1 |
| How many steps in Transcription | 3 |
| How many steps in translation? | 5 |
| What Step of Transcription? Complimentary nucleotides are added then joined. | Step 2 |
| What step of Transcripition? RNA polymerase reaches a termination signal in the DNA, the DNA and the new RNA are released by polymerase | Step 3 |
| Shape of DNA, that looks like 2 chains wrapped around each other, looking similar ro a winding spiral staircase. Explains how DNA can replicate. | Double Helix |
| Studying DNA replications helps to understand treatments for what | Cancer |
| What is cancer? | mutation in which cells divide at an uncontrolable rate, becoming invasive. |
| A process of nuclear division that redces the number of chromosomes in new cells to half the number in the original cell. The halving chromosome number counteracts a joining if cells later in the life cycle of the organism. | Meiosis |
| Division of the nucleus, which occurs during cell division. A continuos process that allows for the organized distribution of a cell's copied DNA to offspring cells. Divided into four phases. | Mitosis |
| what are the phases of Mitosis? | Prophase; Metaphase; Anaphase; Telophase |
| What comes after telophase in Mitosis. | Cytokenisis |
| What step of Translation? The ribosomal subunits, the mRNA, and the tRNA carrying methionine bind together | step 1 (Initiation) |
| What step of translation? The tRNA carrying the amino acid specified by the next codon binds to the codon. A peptide bond forms between adjacent amino acids. The ribosome moves thetRNA and mRNA. | Step 2 (elongation) |
| What step of translation? the first tRNA detaches and leaves its amino acid behind. The polypeptide chain continues to grow | Step 3 (elongation Cont'd) |
| What step of translation? The process ends when a stop codon is reached. A stop codon is one for which there is no tRNA that has a complimentary anticodon | Step 4 (termination) |
| Wht happens in Step 5 (Disassembly), in translation? | The ribosome complex falls apart. The newly made polypeptide is released |
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skoolsux
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