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processes of DNA replication and protein synthesis

Pbs Org Replication And Protein Synthesis Answers

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The "negative replication factor" ("nef") gene encodes a protein which hangs around in the cytoplasm of the cell, and retards HIV replication. Possibly it does this by modifying cellular proteins that regulate the initiation of transcription - that is, it affects the proteins which tell the cell whether or not to make RNA copies of the DNA code.

DNA Replication and Protein Synthesis - PBS

Reverse transcriptase, by the way, is not an awfully good copier. It has been estimated that during each round of HIV-1 replication, 10 mistakes (such as incorrect coding "letters" or missed-out bits of code) are incorporated. This is a lot worse than, for example, an ordinary cell's transcription process, which has mechanisms in place to reduce the number of errors made. In fact this poor fidelity in the transcription is part of the reason HIV is so difficult to defend against - it means that the pattern of HIV genes and proteins changes quite rapidly, too rapidly for the immune system to keep up with.

DNA Replication & Protein Synthesis - PBS

DNA Replication and Protein Synthesis Rap ..

Reverse transcriptase, by the way, is not an awfully good copier. It has been estimated that during each round of HIV-1 replication, 10 mistakes (such as incorrect coding "letters" or missed-out bits of code) are incorporated. This is a lot worse than, for example, an ordinary cell's transcription process, which has mechanisms in place to reduce the number of errors made. In fact this poor fidelity in the transcription is part of the reason HIV is so difficult to defend against - it means that the pattern of HIV genes and proteins changes quite rapidly, too rapidly for the immune system to keep up with.

Transcription is the process of copying a DNA code into RNA. Commonly, in cells, a (DNA) gene which encodes a particular protein will be copied into "messenger RNA" (mRNA for short), and then the mRNA is transported to the section of the cell where proteins are made. (A good analogy for this is that the DNA genome is a library. In order to make yourself a protein you need to go to library, find the right book [gene], and take a photocopy [mRNA molecule] of the instructions so that you can take them away and use them.)

Flanders Virus Replication and Protein Synthesis ..

Browse and Read Pbs Org Replication And Protein Synthesis Answers Pbs Org Replication And Protein Synthesis Answers A solution to …

This Concept Map, created with IHMC CmapTools, has information related to: dna replication, an RNA primer which is replaced by DNA polymerase I, synthesized continuously by DNA polymerase, enzymes and proteins such as DNA ligase, DNA polymerase I then the Okazaki fragments are linked covalently, the Okazaki fragments are linked covalently by DNA ligase, semiconservative meaning one strand is conserved, enzymes and proteins such as gyrase, DNA helicase unzips DNA helix, discontinuously synthesized first RNA primase, gyrase produce breaks in DNA to prevent knotting and strain, enzymes and proteins such as DNA helicase, enzymes and proteins such as DNA polymerase I, DNA helix forming replication fork, enzymes and proteins such as RNA primase, free nucleotides in 5' -> 3' direction, DNA Replication is semiconservative, enzymes and proteins such as DNA polymerase III, replication fork forms leading strand, single stranded binding proteins keep DNA separated, lagging strand is discontinuously synthesized

Transcription is the process of copying a DNA code into RNA. Commonly, in cells, a (DNA) gene which encodes a particular protein will be copied into "messenger RNA" (mRNA for short), and then the mRNA is transported to the section of the cell where proteins are made. (A good analogy for this is that the DNA genome is a library. In order to make yourself a protein you need to go to library, find the right book [gene], and take a photocopy [mRNA molecule] of the instructions so that you can take them away and use them.)

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