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The nitrogen base that RNA has but DNA does not What is uracil?
The nitrogen base that RNA has but DNA does not What is uracil?

... A group of three nitrogen bases that codes for a specific amino acid. ...
File
File

... - ​Chargaff’s Rule:​ the ratio of pyrimidines: purines should be 1:1 (A:T = 1:1; C:G = 1:1) - Nucleic acids are made up of ​PONCHO​ (thanks Mr. Grimm!) while proteins are full of CHNOS - Pyrimidines: single-ringed nucleotides. Think ​CUT P​ie, or cytosine, uracil, thymine and pie-rymidine - Purines: ...
TElomere Reverse Transcriptase
TElomere Reverse Transcriptase

... 6. RNA primase-enzyme which lays down a short piece of RNA primer to provide a 3’ end for DNA polymerase III to start from. Neither of the DNA polymerases can start from “scratch” they can only add nucleotides to an existing 3’ end. 7. DNA polymerase III-actually a complex of several enzymes; it is ...
Nucleotide Sequence Manipulation - ILRI Research Computing
Nucleotide Sequence Manipulation - ILRI Research Computing

... Nucleotide  sequence  Analysis   •  In  the  DNA  double  helix  Adenine  pairs  with  thymine  and  guanine   with  cytosine.   •  A  and  T  connected  with  two  hydrogen  bonds.   •  C  and  G  connected  with  three  hydrogen  bonds ...
Quiz #6 - San Diego Mesa College
Quiz #6 - San Diego Mesa College

... D) anywhere along a DNA strand Q. 2: The double helix of the DNA molecule can be relatively easy separated into its two polynucleotide strands during DNA replication, because the paired bases of its nucleotides are held together by polar covalent bonds. A) True B) False Q. 3: A segment of nucleotide ...
DNA and Protein Synthesis Review Sheet
DNA and Protein Synthesis Review Sheet

... 20. Write the complimentary pairs for the following nitrogen bases (DNA to DNA) ATGCACA TACGTGT 21. Write the complimentary pairs to form a mRNA strand. TAAGCGC AUUCGCG 22. If the sequence of nitrogen bases is altered, what else will be altered as a result? Amino Acid Sequence 23. What nitrogen base ...
The Molecular Basis of Inheritance
The Molecular Basis of Inheritance

... Protein is produced during the process called translation. This process has three main parts: initiation elongation termination ...
3-Molecular biology
3-Molecular biology

... the selected amino acids to the growing protein chain. • rRNA (ribosomal RNA)  Function: Site of protein synthesis (factory). ...
codon
codon

... 1. If a DNA strand read AAC GTC GCG TAC, what would the mRNA strand be? 2. Does the mRNA model more closely resemble the DNA strand from which it was transcribed or the complementary strand that wasn’t used? Explain 3. Explain how the structure of DNA enables the molecule to be easily transcribed. W ...
Section 13.1
Section 13.1

... RNA polymerase will bind to 1st nucleotide of DNA Complementary RNA nitrogen bases will attach to one DNA strand Transcription will stop when: ...
RNA 1
RNA 1

... • DNA codons copied to mRNA codons • Transcription makes a copy of the genetic info in another form. ...
Transcription- lecture outline
Transcription- lecture outline

... In prokaryotes, all classes of RNA are transcribed by the same enzyme so the promoters share common features a TATAAT "box" about -10 bases from the start of transcription (or Pribnow box) a TTGACA sequence centered at -35 These are "consensus" sequences, meaning not all are identical, but each box ...
DNA Strand
DNA Strand

... • In some cases the protein made by 1 gene combines with the proteins made by other genes to change what they do – Height is an example of this ...
File
File

... line up opposite the active strand, forming mRNA 3. mRNA leaves the nucleus Transcription demo ...
Section 12-3 - Boyertown Area School District
Section 12-3 - Boyertown Area School District

... • State the central dogma of molecular biology. • Describe the structure of RNA, and identify the three main types of RNA. • Give an overview of transcription. • Describe the genetic code. • Explain how translation occurs. ...
DNA and RNA
DNA and RNA

... DNA Replication • 1. An enzyme breaks the attachments between the two strands of DNA. • 2. The two strands unzip exposing the bases. • 3. Complementary nucleotides pair up with the bases. • 4. DNA-polymerase synthesizes covalent bonds between sugars and phosphates of adjacent nucleotides. ...
131: The Genetic Material
131: The Genetic Material

... 6. During replication, there are many points along the DNA that are synthesized at the  same time (multiple replication forks). It would take forever to go from one end to the  other, it is more efficient to open up several points at one time. ...
CH. 8- DNA and protein synthesis
CH. 8- DNA and protein synthesis

... b. deoxyribose, phosphate groups, and guanine c. phosphate groups, guanine, and cytosine d. phosphate groups, guanine, and thymine ____ 11. DNA is copied during a process called a. replication. b. translation. c. transcription. d. transformation. ____ 12. Which of the following statements is false? ...
Document
Document

... Which scientist(s) took an Xray diffraction picture of DNA to discover that it was a double helix? ...
PowerPoint- Transcription and Translation
PowerPoint- Transcription and Translation

... short sound long sound ...
Comparing DNA and RNA
Comparing DNA and RNA

... Comparing DNA and RNA Like DNA, ribonucleic acid (RNA) is a nucleic acid— a molecule made of nucleotides linked together, RNA differs from DNA in three ways, First, RNA consists of a single strand of nucleotides instead of the two strands found in DNA. Second, RNA nucleotides contain the five-carbon ...
DNA Replication and Repair
DNA Replication and Repair

...  The second generation (15N E.coli grown in 14N) had intermediate DNA  The third generation (still in 14N) had both intermediate and light DNA ...
DNA
DNA

... Transfer RNA • Like other types of RNA, tRNA molecules are transcribed from DNA templates in the nucleus. • Once it reaches the cytoplasm, each tRNA is used repeatedly • to pick up its designated amino acid in the cytosol (cytoplasm), • to deposit the amino acid at the ribosome, • to return to the ...
Chapter 12 Test Review
Chapter 12 Test Review

... 24. The process of transferring information from DNA to RNA is called transcription. It results into manufacturing a complementary strand of RNA. 25. The process of transcription takes place in the nucleus. 26. During transcription, the hydrogen bonds between base pairs are broken. 27. A three-base ...
BIOLOGY Chapter 11: DNA and the Language of Life Name: Section
BIOLOGY Chapter 11: DNA and the Language of Life Name: Section

... During DNA copying, the two strands of the double helix separate. Each single strand acts as a “negative” or “template” for producing a new, complementary strand. A. Easy steps for DNA Replication. Enzymes are protein molecules that catalyze chemical reactions in a cell – usually any protein ending ...
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Helicase



Helicases are a class of enzymes vital to all living organisms. Their main function is to unpackage an organism's genes. They are motor proteins that move directionally along a nucleic acid phosphodiester backbone, separating two annealed nucleic acid strands (i.e., DNA, RNA, or RNA-DNA hybrid) using energy derived from ATP hydrolysis. There are many helicases resulting from the great variety of processes in which strand separation must be catalyzed. Approximately 1% of eukaryotic genes code for helicases. The human genome codes for 95 non-redundant helicases: 64 RNA helicases and 31 DNA helicases. Many cellular processes, such as DNA replication, transcription, translation, recombination, DNA repair, and ribosome biogenesis involve the separation of nucleic acid strands that necessitates the use of helicases.
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