Dna and rna replication
[DOC File]DNA - The Physics Teacher
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Name the bases in RNA. Discuss the replication of DNA 2.5.4 DNA Profiling. Discuss the stages involved in DNA profiling. Define the process of DNA profiling. Give two uses of DNA profiling. Define and give the use genetic screening 2.5.5 + 2.5.15.H Protein Synthesis. Know that genes control cell activities by producing proteins . Know that DNA makes proteins. Know that DNA carries instructions ...
[DOC File]DNA/RNA/Protein Synthesis Pre-Test
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c. attaches to DNA and breaks it apart to make replication occur. d. attaches the correct bases to the DNA strand to replicate DNA. 19. ____C___ mRNA does this. a. translates the DNA strand and codes for amino acids. b. carries amino acids to make proteins . c. uses the information from DNA to make proteins. d. makes up ribosomes and attaches to the mRNA. 20.____B____ RNA Polymerase. a ...
[DOC File]I] DNA and RNA
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C. DNA REPLICATION. Introduction. a. Before a cell _____ it must first copy all its DNA . b. It must do this while keeping the amount of _____ to a minimum. c. Also, the DNA will have to be _____ to allow access to the bases. [The bold numbers following the bold terms refer to the DNA picture of replication on the next page] 1. Separating the strands. a] DNA helicase [1] – breaks ...
[DOCX File]Chapter 16: DNA: The Genetic Material
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they present special problems for DNA replication: the 5’ end RNA primer cannot be replaced with DNA, creating 5’ end gaps. this leads to shorting of chromosomes at the ends with each cell generation. in some cells, special telomerase enzymes can generate longer telomeres – telomerase is required in germ-line cells, and active in cancer cells as well. DNA packaging in chromosomes. the ...
Lecture 16: DNA Replication
DNA Polymerases Require a Primer to Initiate Replication. DNA synthesis, like RNA synthesis, proceeds 5' → 3' (formation of phosphoester bond between 3' oxygen of growing strand & alpha phosphate of dNTP. primer (preexisting RNA or DNA strand) required to begin chain growth. Duplex DNA is unwound + Daughter strands are formed at DNA Replication fork . At replication origins ORI: usually A-T ...
[DOCX File]Worksheet on DNA and RNA - St. Joseph High School
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During replication, the two nucleotide chains _____ and each chain serves as a _____ for a new nucleotide chain. The sites where DNA replication and separation occur are called _____. During replication, enzymes called _____ untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the
[DOC File]DNA Replication - Wild about Bio
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Label the replication fork. Draw and label helicase. Label the overall direction of DNA replication. Draw and label single stranded binding proteins. Draw and label the leading strand. Draw and label a single DNA polymerase III on the leading strand. Draw and label an RNA primer on the leading strand. Draw and label a DNA polymerase I on the ...
[DOCX File]RNA and Protein Synthesis
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24. DNA replication results in. a. 2 completely new DNA molecules. 2 DNA molecules that each contain a strand of the original. 2 old DNA molecules. 1 new molecule of RNA. 25. What are the units that form a DNA molecule? A. amino acids b. nucleotides c. nitrogen bases. 26. Which is used in DNA replication AND in protein synthesis? A. DNAb.tRNAc ...
[DOC File]DNA Replication - Nature of Science
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Replication of DNA doesn't begin at one end of the molecule and proceed to the other. Rather, DNA is copied simultaneously at many points along the molecule. Enzymes join the segments of DNA to each other as they are copied. Because of the size of the DNA molecule, if replication doesn't occur in this way, it would take 16 days to copy just one DNA molecule of a fruit fly. Actually, the ...
[DOC File]DNA Replication - Tusculum University
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A few ribonucleotides laid down by RNA polymerase can serve as a primer for DNA polymerase. RNA polymerase. Primes the leading (continuous strand) Primase. Primes lagging (discontinuous strand) Primer. 1 to 60 bases. Provides 3'-OH group for DNA polymerase III to add a deoxynucleotide. TOPOGRAPHY OF DNA REPLICATION. Unwinding of parental DNA during replication causes stress …
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